Were you able to find the cause or successfully treat the fevers? I’ve been struggling with low grade fevers, joint pain, fatigue, etc. since last January (2020). After seeing numerous specialists, I was diagnosed with Lyme disease in November, as well as POTS in January. My doctor believes Lyme is what caused POTS for me.
Every day, I experience low-grade fevers typically in the 99.5-100.5 range. I’ve often joked that my thermostat is broken, but I’ve begun to wonder if my fevers were initially from Lyme and have persisted as a result of POTS. Like you, my temperature drops back to normal around bedtime and begins to rise as I start to go about my day. I have elevated DHEA-S, as well, so my adrenal function is currently being evaluated (PCOS has been ruled out for me). Interestingly, I also experience hot flashes with my fevers instead of chills.
I appreciate any help or guidance you can offer!