This is exactly what is happening to me except I was tested positive on July 10th ! I am also literally falling asleep on my feet some days !

Wow! I, too, have this low grade fever of 99. I contracted Covid on 6/8/2022. On one day my fever reached 103.4, but eventually returned to the "normal" of 98.6 However, my normal temperature was never 98.6. Ever since having Covid, I spike these 99 degree fevers, but never as much as 100 degrees.
I have tried to research this, and it does not seem to be a huge deal, at least from what I am finding. Since I didn't have a reason to take my temperature all the time before I got Covid, I have no way of knowing if the fever spikes pre-existed the Covid diagnosis.
Let us know if you find out anything about this. Curious!

I as well have this persistent low grade fever. I tested positive for covid on 6/3/20. I was very ill for 2 weeks. After the 2 weeks I returned to normal. On the 3rd week I started having intermittent low grade fever. My temperature now fluctuates, staying normal (98.2) for an hour or so then jumps to 99.0-100.2 for several hours . Today is day 57 of this intermittent low grade fever. When my temperature is normal I feel ok but still weak. When I have the low grade fever I feel very weak and is accompanied by an headache. I should also mention I have slight wheezing when I breathe in. Also when I take deep breaths I have a uncomfortable pressure on the right side of my chest almost as if something is lodged. I am 38 years old male, I have always been healthy and active. I hope this is temporary.

Stephan

Hey I just read your comment. My mom has the same thing except her fevers are all day. What did you do to help? I would really appreciate it