I just want to feel valid and relief

I dont really know if i belong in these parts but i wanna share anyway because i dont feel heard anywhere else. For about the past 8 years, i have been dealing with almost daily pain. I have always been athletic and swam since i was real little. I struggled with your typical shoulder issues despite the year an overuse injury took away my season. When i was 16, i blew my back out during a weight lifting session with the team. I was out for a while with the back injury before i felt good enough to return. But i dont think ive ever fully recovered. Ever since then, id have these flare ups in my back that show up every few months or so and id always be extra careful when this happened. However, the past 3 or 4 years have gotten worse. I swam in college but quit mainly because my back was constantly an issue for me and i wasnt getting better. I went from doctor to doctor taking multiple mris and other tests and nothing showed any answers. Ill never forget when a doc said that i have "the most healthy spine" hed ever seen. Despite the doc visits and PT, nothing seemed to work. The past year has been the most difficult for me. Ive been experiencing some of the worst back pain since i was 16 on a daily basis along with hip, knee, wrist, finger and shoulder pain. Ive got shin splints and now migraines to go with all of it. I tried adding exercise in hopes that moving and strengthening my body carefully would help, but i honestly think its only making it worse. I work with my hands for my career as an artist and hobbyist in the garden and cooking in the kitchen. I cant stand the thought that these things could be taken away from me. I dont have any answers as to why i am experiencing any of this or how to stop it. I take painkillers every day in hopes to find a break from the pain. I complain all the time to the point that all i get now is eyerolls and scoffs. I cant stand living like this anymore. I just want to feel like my problems are valid but mostly, i just want relief.