Compression fracture of my t12 when i was 15. its healed but i still have terrible back pain 11 years later and gets really bad. what would cause this?

Kyphosis: If the facture healed as awedgeand your new spineshape has your center of gravity in front oyoursacrum this leads to a lifetime of overworked muscles to keep your spine balanced severe progressive deformities can be corrected and stiffened see a spine specialist and get serial standing xrays.

Spine specialist: Seek out a physiatrist with fellowship interventional spine training (or other spine specialist) that can evaluate you. You have to see if the pain is actually at the t12 level or if it's higher or lower. The facet joints behind where the bone is compressed get added compressive forces after a significant vertebral body fracture. Or, this may be simply myofascial pain.