I had an awful cold or sickness about a year ago (including messed up taste and smell!) and since then I've developed heart racing, panic attacks, and working o

I had an awful cold or sickness about a year ago (including messed up taste and smell!) and since then I've developed heart racing, panic attacks, and working out is sooooo hard now. My strength is down, my cardio sucks, and just getting myself to work out is a chore. I can feel trouble breathing sometimes. My heart can race from sitting or walking up stairs. I was pretty dang fit and working out hard 5 days a week. Now getting 1-3 days in in a week is near impossible due to being tired. I tested negative for covid antibodies. I'm not sure about all the data on "post covid 19 syndrome" but I check a lot of boxes for it but didn't test positive. My wife is in a similar block. Just tossing some anecdata out there.