So sorry to hear all that you are going through. I also have lost weight, 47 pds to date, have had severe insomnia, pressure in head, headaches, severe food intolerances, couldn’t pass a stress test was on it for only 1:12 minutes. I am going to a pulmonologist in a few weeks been to a lot of doctors and e. R. Rooms. This Covid is a nightmare, I go to stores and I can’t breathe, to go shopping , have dizziness on and off. Please don’t give up, there will be better days, there has to be some sort of resolution for this. I understand I am going through the same thing as you we all are in this Covid fight but some are the same symptoms some are different. Have faith we will get better.