For the past 6 ish years, I've had constant thoracic back pain. Went to the doctor for it when I was 12 and they just told me I was too skinny for my height (5'6, weighed about 95lbs) and it would fix itself if I put on muscle mass in my core to support myself. So I did that but it didn't help. I'm now a healthy weight (5'8 and 130lbs) but the pain and stiffness are still there. Another weird little detail is that twice now in the past 2 years, I've had episodes of really bad pain at night. These episodes are different than the regular back ache. The pain is all over- thoracic and lumbar, and creeps into my sides and shoulders. It hurts so much that I can't move without looking like Quasimodo. And both times, it's been accompanied by diarrhea (although this time the diarrhea could be from my period, and last time it could have been from antibiotics I was on at the time.) Last time I thought it was some adverse affect of antibiotics I had been on at the time but I'm not on antibiotics this time. This is debilitating and I want it to stop