I am going to,suggest something much different, take it or leave it. It is reading any book by John Sarno or Howard Schubiner. Both mind body MDs since you have no other options right now they see all medically unexplained symptoms of stemming from the brain and its response to stress, be physical stress or emotional stress. There a good website called symptomatic.me where you can find resources other resources are Dan Buglio Painfreeyou.com or Dan Ratner crushingdoubt.com.
I A very strange symptoms some which are explainable some, which are not that have played to me and made me unable to function pretty much almost 2 years. I’m on some of those groups and although I’m not sure it’s actually going to help it’s never hurts to try to look at things from a different perspective even just good to calm yourself down to find support