my sympathy butterfly, that's awful! My joints are slowly crumbling around me and I play pretty much the worst possible sport for hyper mobility. My fault [wince] My physio used to do the most amazing adjustment and was able to free up the joint with an osteo-style click-fest. The first time it happened to me, I couldn't put my foot to the floor at all, so couldn't walk. I walked out of the physio completely normal again! I think you just get used to a low level of pain all the time. On the plus side, labour was a breeze due to my high pain threshold :D
Highly recommend ante natal pilates to strengthen your core and limber up your spine, is there anything near you?