Mike, I agree with you. Covid could very well have attacked your gut. I know that I mentioned Irritable Bowel Syndrome in an earlier post. It is hard to diagnose, but, your stomach gets distended with bloating, gas and you could have constipation or diarrhea. They usually do an upper GI to diagnose it. IBS can be brought on by stress (Covid is stressful!), dietary changes and even some vitamins I found can cause mine to flare up. Certain foods can flare you up. There are medications for IBS if this is the problem. IBS is very tiring as well. When I flare up with it, I feel like if I could stick a pin in my stomach and let all the air out, I would relieve the distension. I am so sorry you are battling this. I believe you will get answers. You have to keep trying different doctors and avenues. God Bless You!