I too have multiple problems. Started with endometriosis in my 20's, then fibromyalgia in my 30's, then osteoarthritis, polycystic ovaries, fibroid tumors, sleep apnea, restless leg syndrome, periodic limb movement disorder, the most recent ulcerative colitis. Had kidney cancer two years ago and also had to have gallbladder removed. Have had ulcers, GERD, foot problems, allergies, etc. Used to wonder if I was a hypochondriac and I know my friends and family thought so. But scientific evidence and tests could back up all diagnosis (except the fibro). These diseases are all related somehow. I think many have to do with auto immune problems (cytokenes or something like that, TNF other complicated things) and others may have come from the drug treatment for other diseases as well as the stress and anxiety.
Cymbalta was a miracle drug for me for the fibro. Nothing is working for the UC. Hope someone finds what is behind all these diseases some day.