Good morning, @tiredandalone Your @name makes me feel very sad and concerned for you. Reading through your post today, my goodness, you’re really going through the ringer with all these unexplained symptoms! No wonder you’re frustrated and tired. But I do hope you’re not completely flying solo. Do you have friends, family, or pets that can offer some support or help bolster you when you’re feeling alone? Well, I’m happy you found Connect, you won’t be alone here. ☺️

Regarding your symptoms. You’ve been seen by a number of doctors and had quite a few tests run. What I noticed also was the recurring symptoms of illness which points to your immune system not being at its peak performance level.

You mentioned having Covid in 2019 and that you’re still experiencing most of those symptoms. Were you feeling perfectly healthy before having Covid? Have you ever heard of Covid Long haul? Some people who had the virus never feel as though they’ve recovered. The Connect forum has a group dedicated to the symptoms and any questions from members experiencing similar issues.

Here’s the link to the Group along with a excellent podcast on Longhaulers and one conversation you might find interesting as an introduction to the discussions in post covid group.
https://connect.mayoclinic.org/group/post-covid-recovery-covid-19/
https://connect.mayoclinic.org/comment/601628/
https://connect.mayoclinic.org/blog/podcasts/newsfeed-post/post-covid-19-syndrome-can-be-a-long-haul/
I’m not saying this is what’s going on but it’s another avenue to explore.
Has your doctor also checked for any other viruses such as CMV or Epstein-Barr?

Another item that raised my eyebrows a little is the elevated protein in your blood. Inflammation in the body can cause that but your doctor can have a lab test run to zero in on the type of protein. More specific tests can help determine the source such as liver or bone marrow.
Has your doctor further mentioned the protein in your blood?