I found relief from a similar-sounding condition (albeit not as long-lasting) from a book called The Mind-body Prescription by Dr. John Sarno. It’s short, and relabels “psychosomatic” as mindbody disorders, which are *not* all in your head, but can’t be diagnosed because the underlying cause is some sort of repressed urge. It might be perfectionism, or what Freud called “narcissistic rage.”
I will be praying for you, and I truly believe that you will get better because of your last line! St. Raphael, pray for us!