I have had Covid 3 times and long haul issues on and off for years.
This is what happens to me generally a couple of times per year.
I first get a cough and loss of appetite. After the cough for several weeks and less appetite the unregulated body temperature begins and can last from a few weeks to 3 months.
It just came back with a vengeance, first time in over a year. I thought I was finally over it. Now I can start sweating for no reason. I sweat profusely; cheat, back, face and head. It’s so bad I need to towel dry my hair and a new shirt. I sit in a bathrobe or with only a towel over my upper body when home.