Marie Claire UK Marie Claire UK
  • Fashion Fashion
      • Fashion
        • View all Fashion
        • Fashion Trends
        • Shopping
        • Watches and Jewellery
        • Fashion News
  • Beauty Beauty
      • Beauty
        • View all Beauty
        • Fragrance
        • Hair
        • Make Up
        • Skincare
        • Nails
        • Marie Claire Beauty Awards
  • Health Health
      • Health
        • View all Health
        • Fitness
        • Nutrition
        • Female Health
        • Wellbeing
  • Life Life
      • Life
        • View all Life
        • Opinions
        • Travel
        • Sustainability
        • Weddings
        • Money & Work
        • Competitions
  • Culture Culture
      • Culture
        • View all Culture
        • TV and Film
        • Celebrity News
        • Books
        • Royal News
  • Vouchers Vouchers
      • Clothing
        • View all Vouchers
        • Mint Velvet
        • Karen Millen
        • H&M
        • nobody's child
        • ASOS
        • ARKET
        • MANGO
      • Designer Clothing
        • View all Vouchers
        • Reiss
        • THE OUTNET
        • SSENSE
        • Mytheresa
        • Liberty London
        • Selfridges
        • Farfetch
      • Accessories
        • View all Vouchers
        • AllSaints
        • Aspinal of London
        • Charles & Keith
        • River Island
        • FitFlop
        • Kate Spade
        • Vagabond
      • Jewellery
        • View all Vouchers
        • Pandora
        • Abbott Lyon
        • Goldsmiths
        • Beaverbrooks
        • Astrid & Miyu
        • Swarovski
        • Angara Jewellery
      • Beauty
        • View all Vouchers
        • Sephora
        • Cult Beauty
        • Space NK
        • Dyson
        • Clarins
        • Look Fantastic
        • Clinique
      • Activewear
        • View all Vouchers
        • Lululemon
        • Gymshark
        • Sweaty Betty
        • Nike
        • adidas
        • New Balance
        • Helly Hansen
  • NEWSLETTER Signup to our newsletter
  • logoCreated with Sketch.
    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!


    By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

    You are now subscribed

    Your newsletter sign-up was successful


    An account already exists for this email address, please log in.
    Trending
    • Women in Sport 2026
    • Marie Claire Masters
    • Spring Summer 2026
    • Nail Trends 2026
    • Best Investment Bags
    • Best Perfumes
    • Digital Issues
    • Women Who Win
    1. Health and Fitness

    So, does Omicron cause stomach pain? Plus 7 other flags you may have the virus

    The Office For National Statistics reported last week that around one in 16 people currently has Covid in the UK.

    Ally Head's avatar
    By Ally Head
    Published 28 March 2022 In Features

    When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

    Does Omicron cause stomach pain? Young adult woman entering office wearing face mask looking off camera
    • Facebook
    • X
    • Pinterest
    Share this article
    Join the conversation
    Follow us
    Add us as a preferred source on Google
    Subscribe to our newsletter

    The Office For National Statistics reported last week that around one in 16 people currently has Covid in the UK.

    Sadly, Covid-19 cases are on the rise again, thanks to the new strains of Deltacron and Stealth Omicron sweeping the globe.

    According to the Office for National Statistics, the number of Covid cases across the UK rose by one million last week compared to data from the week prior.

    Figures from Scotland also show that cases are at the highest they've been since data collection started, painting a bleak picture for the summer months ahead.

    Around one in sixteen are thought to have Covid in the UK at current, just shy of the all-time high last December, mid-Omicron peak, where one in fifteen people in the UK had it.

    You may like
    • Woman meditating in the garden Exhaustion, Brain Fog, and Low Mood Aren't Always Burnout—Here's The Diagnosis Women Are Missing
    • Three women on the beach: Stretching, looking into the sun. Over 800,000 Women in the UK Have PMDD, Yet 90% Are Misdiagnosed—Here's What's Going Wrong
    • Period in a heatwave: A woman holding a grapefruit to her stomach A Gynaecologist Explains Why Your Cycle Feels More Difficult During a Heatwave—And How to Make It a Bit More Bearable

    We've shared an explainer on how transmissible new Deltacron and Stealth Omicron variants are, why a doctor thinks you haven't had Covid yet, if you've never had the virus, plus a bit on the link between vitamin D and coronavirus, too. But did you know? The symptoms of the Omicron variant are actually different to the previously circulated Covid-19 symptoms.

    Omicron Covid symptoms: 7 to be on alert for

    Previously, the NHS warned you to look out for the "classic three" symptoms: a loss (or change) to smell or taste, a new, continuous cough, and a high temperature. But with the new Omicron variant, experts - including Oxford professor Sir John Bell - have warned that symptoms are "rather different".

    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!

    By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

    While remaining on the lookout for the classic three, data from the ZOE Covid study app recommends that you also watch out for the following:

    • Headache
    • Sore throat
    • Aching muscles, particularly in your back
    • A stuffy/runny nose
    • Some stomach upset
    • Loose stools
    • Nausea.

    Despite the new strain, the UK government hasn't updated its official symptoms list since spring 2020.

    Speaking to Radio 4's Today show, sir Bell - who is a professor of medicine - said: "One of the things we do know is the syndrome is rather different."

    What to read next
    • A woman stretching, curled up in bed, and working out Women Are “Stress Holding” in Their Pelvic Floors—5 Warning Signs Experts Want You to Know About
    • A woman on the beach, in a bikini, eating some fruit I'm an Exercise Physiologist—If You’re Feeling Puffy, Tired, and Achy This Summer, These Everyday Habits Could Be Playing a Role
    • Skin The Common Vitamin Deficiency Dermatologists Notice in People With Acne

    A photo posted by on

    He went on to stress that a few symptoms are particular red flags.

    Does Omicron cause stomach pain? 

    Wondering if Omicron can trigger stomach symptoms or an upset stomach? Short answer: doctors think so.

    Differently from past Covid-19 strains, data from South Africa reports that an upset stomach or loose stools is a symptom.

    So does Omicron cause stomach pain? Commenting on the changing symptoms, he speculated: "It’s one of the most interesting features of this. It looks like it’s behaving differently."

    Does Omicron cause nausea? 

    Tim Spector, Professor of Genetic Epidemiology at King’s College London, has further added that nausea may be another symptom of Omicron, especially during the earlier stages of catching the virus.

    Speaking in a video he posted to YouTube, he shares that this symptom could affect even those who have had both vaccines and a booster.

    Covid 19 stomach pain: young woman with stomachache leaning on the bed at home.

    Does Omicron cause back pain? 

    Muscle aches, pains, or soreness is a "distinguishing feature" of the new Omicron strain, but as of yet, scientists don't know why.

    Global data suggests that muscle aches are a symptom of the new variant, with the symptom being observed in the US, UK, and South Africa.

    It's thought that, while the pain will begin at the bottom of your spine or lower back, it will then gradually spread to the rest of your body, causing general muscle ache.

    Warning the general public to be more mindful of the new and evolving symptoms, professor Spector said in the video: “A lot of the Omicron symptoms are looking like the common cold or some other viral illness, without any of the classic symptoms."

    “Unfortunately the government hasn’t yet taken this on board and is one of the only government’s in the world not to tell its citizens what the symptoms are."

    Covid 19 stomach ache: woman wearing a mask

    Should I be worried about rising cases? 

    And are the new strains more transmissible? When asked exactly how much more transmissible Omicron is actually is than Delta, sir Bell confirmed that yes, it is.

    "We know this is a highly infectious variant, two or three times as infectious as Delta, which was a pretty infectious variant of its own."

    "One of the reasons it’s sweeping through the country so quickly is because it is very, very infectious."

    So should you be worried? Doctor David Nabarro, who works at the World Health Organisation as a special envoy on Covid-19, encourages caution where possible - that is, continue to wear a mask, social distance where you can, wash your hands regularly, and so on.

    “What people are seeing from around the world and reporting to the WHO is this is still a very, very dangerous virus, especially for people who have not been vaccinated and who’ve not been exposed to it before," he warns.

    Ally Head
    Ally Head
    Social Links Navigation
    Senior Health and Sustainability Editor

    Ally is Marie Claire UK's Senior Health and Sustainability Editor, a well-regarded wellness expert, ten-time marathoner, and Boston Qualifying runner.

    Utilising her impressive skillset and exceptional quality of writing, she pens investigative, review and first-person pieces that consistently demonstrate flair and originality.

    Ally manages a team of freelancers, oversees all commissioning and strategy for her pillars, and spearheads the brand's annual Women in Sport covers, interviewing and shooting the likes of Mary Earps, Millie Bright, and Ilona Maher. Shortlisted for three BSMEs and winning one in 2022, Ally lives and breathes her verticals: her eye for a story and connections within the wellness sphere are unrivalled. Follow Ally on Instagram for more.

    Read more
    Woman meditating in the garden
    Female health Exhaustion, Brain Fog, and Low Mood Aren't Always Burnout—Here's The Diagnosis Women Are Missing
    Three women on the beach: Stretching, looking into the sun.
    Female health Over 800,000 Women in the UK Have PMDD, Yet 90% Are Misdiagnosed—Here's What's Going Wrong
     
     
    Period in a heatwave: A woman holding a grapefruit to her stomach
    Female health A Gynaecologist Explains Why Your Cycle Feels More Difficult During a Heatwave—And How to Make It a Bit More Bearable
    A woman on the beach, in a bikini, eating some fruit
    Female health I'm an Exercise Physiologist—If You’re Feeling Puffy, Tired, and Achy This Summer, These Everyday Habits Could Be Playing a Role
     
     
    Latest in Health and Fitness
    Arsenal footballer and Lioness Chloe Kelly
    Health and Fitness Women in Sport 2026: Featuring Chloe Kelly, Elite Beauty Products, Grand Prix 2.0 and So Much More
    Eva Syti, yoga coach, ARC sauna leader and breathwork practitioner
    Wellbeing Most People Think They're Manifesting Correctly—But Usually Miss These 3 Essential Steps
     
     
    A woman lying on the floor scrolling on her phone
    Female health If You're Frazzled, Overworked and At Your Limit, These 5 Science-Backed Tips Can Help Avoid Burnout
    Health freelancer Anna Bartter treating friendship as a wellness habit: at a concert, at a bar, and with friends
    Wellbeing I Treated Friendship Like a Wellness Habit for Two Months—It Changed My Mental Health More Than I Expected
     
     
    Latest in Features
    The long hair trend and the post-bob era
    Hair I’ve Spent Two Years Growing My Bob—Turns Out, There's a Reason Long Hair Is Trending
    @nlmarilyn in transitional autumn outfits
    Fashion Goodbye Summer Dresses, I'm in Autumn Outfit Planning Mode—These 5 Are Fresh
     
     
    Arsenal footballer and Lioness Chloe Kelly
    Health and Fitness Women in Sport 2026: Featuring Chloe Kelly, Elite Beauty Products, Grand Prix 2.0 and So Much More
    Mischa Anouk Smith on an astrology travel trip to Türkiye, where she got engaged less than 24 hours after a birth chart reading.
    Travel I Let Astrology Plan My Holiday—Less Than 24 Hours Later, I Was Engaged
     
     
    logoCreated with Sketch.
    • Site Archive
    • Contact Future's experts
    • Contact us
    • Terms and conditions
    • Advertise with us
    • Privacy policy
    • Cookies policy
    • About us
    Add as a preferred source on Google Add as a preferred source on Google

    Marie Claire UK is part of Future plc, an international media group and leading digital publisher. Visit our corporate site.

    © Future Publishing Limited Quay House, The Ambury, Bath BA1 1UA. All rights reserved. England and Wales company registration number 2008885.