pook- i had EXACTLY this just a week back
horrid horrid bug….i just felt really off one lunch at work, out of no where, then by 5pm i was shivering and totally cold, went to bed and sweating profusely through the night
woke up next day feeling like death, stomach was awful toilet wise, everytime i went to eat id manage about 3 mouthfuls and feel totally full
had the same awful taste in my mouth throughout, basically no taste what so ever and even after i felt better a week on i had little to no taste and a shabby tasting mouth
what did help me was drinking shite loads of water, flushing it out of my system for me eventually, and it was a nice feeling to wake up feeling normal over a week later
proper felt like death though and felt totally out of sorts for a week
didnt at any point have cough/cold so was defo a stomach bug, cant say as ive had one that bad before but it wiped me out totally, still probably didnt help riding still but what doesnt kill you…….