Sounds like what i went through for 28 yrs only to discover it was lyme disease the whole time. Has he been tested for lyme with a sensitive test. If he has symptoms them the cdc recommended test will not pick it up. The Elissa amd Western Blot are only 25% sensitive so most cases are never treated because of the CDCs negligence. Please consider igenex testing. I had to pay $16”” out of pocket but it was the best thing i ever did. You have to watch “under my skin”. I watched it on youtube. Pt 1&2. Good luck