I have had a positive test just over 2 weeks ago. Double vaccinated. Mild (not a persistent) cough- I mean just the odd cough. Bad nausea and diarrhoea - but this is intermittent ongoing (got up in the night to vomit once - 5/6 lots of diarrhoea during the day so far, but my heart is constantly racing. Feel like I have massive anxiety and panic attack looming - pulse is 105 or above - are these Covid symptoms? Thanks