where do i start to find out whats wrong with me?

literally my entire life ive just assumed everyone was at like a 6 on the pain scale all the time. my ankles would pop out of place, i have osteocondritis dissacans or something like that in my knee, my joints would crack and pop all the time, id get dizzy every time i stood up, my neck would constantly crackle and never feel better, my back ALWAYS hurts. i have all of these issues, no clue why, no idea where to start. my pain just in the past year got much worse (post extremely traumatic abusive relationship) and i got diagnosed with fibromyalgia, but that STILL doesnt explain all of my symptoms. where do i even go from here?