Don't miss a thing by getting the day's biggest stories sent direct to your inbox Researchers believe that these new symptoms could indicate Covid infection in the UK with the Delta variant, the BBC reports.
Professor Tim Spector, who runs the Zoe Covid Symptom study, said people who contract the Delta variant can feel "more like a bad cold" for younger people.
Although they may not feel very ill, they could be contagious and putting others at risk unwittingly. Anyone who thinks they have coronavirus is urged to take a test.
According to the NHS website, the classic symptoms for coronavirus are: Our free Northern Agenda daily newsletter looks at the political stories that really matter across the North.