Felt really tired for like one or two days then Friday night it really started hitting and yes very tight in the lungs. Sat and Sunday were like a bad dream everything hurt back, hair, etc couldn’t even read a book or look at anything. Wake up in a pool of sweat at night just dripping. Never checked my temp but pretty sure I had a fever. Monday and Tuesday a lot of phlegm started loosening up and couldn’t stop coughing to get it out. By wed was feeling better but like you said it would come in waves. One minute I felt good the next I was wiped out. Much better by the weekend. The only good thing about it was that I feel even better than before I got it now.