@beanie300 - I know how tough your life has been. Sounds like my daughter’s story. After years of multiple health problems- appearing not connected- she was diagnosed with Cushing’s disease caused by a small pituitary tumor. This was the area that is involved in cortisol production. She was 27 at diagnosis, but was tested on and off through the years for endocrine problems. She would have many infections, tachycardia, type 2 diabetes, bipolar diagnosis, severe body pain- fibromyalgia. Also severe mono freshman year, had mono before. She also never had fevers, low temps
Your serum cortisol was normal and low. They typically test 24 hr urines more than once, since cortisol is not always peaking.
I just wanted to share my daughter’s search for an answer. Keep looking!!