jeez, what a night mare! I'm so glad that you have improved some. Sounds like you have been through hell and back.

What a nightmare! I hear you and I believe you. Do find whatever best care you can. My 23 yr old daughter battled post-viral-infection-syndrome. She was diagnosed at Virginia Mason Hospital in Seattle, which is considered to be very similar to a Mayo Clinic, but here in the NW, and a day's drive from where we were in central Oregon. The doctor she saw there said that only because they were seeing so many cases similar to hers, could he make the diagnosis.
She is fine now, allergic to many foods [cow dairy (goat and sheep okay), chicken eggs (duck eggs okay), all gluten containing grains including wheat, barley, oats (rice, quinoa okay), bell peppers], and the list goes on.
Others have mentioned some blood work: make certain you get a thyroid PANEL done, not just TSH. This has probably been done in all your medical quests, but make certain all the thyroid hormones are checked.
I'm wishing you the very best as you continue this difficult journey. I'm so sorry that your relationship dissolved over something that was not in your control. Sending caring thoughts your way.