It took 15 years before I was diagnosed by a rheumatologist. During that time I was repeatedly told that all my symptoms were in my head. I suffered extreme fatigue and lost a good job because of it. I am no longer able to work, but I kept trying for 15 years, and I got fired from two jobs.
I no longer do any of the things I used to do, like attend weddings or go out and dance. I have trouble walking my dog most days. I mostly stay at home and do some accounting on the side just to keep my mind sharp.
The fact that I was able to work full time in my 30s and attend night school to get my accounting degree. I missed classes, but my teachers always helped me to catch up.
It took me a long time to accept this diagnosis.
Don't ever give up, keep educating yourself.