Suggest Treatment For Pain

I have constant back ache, I am obese and as a baby i had hip dysplaisia. I developed maltrackng of the knee cap as a child and at 16 had an External fixator to correct my left leg. I never returned to have my right leg operated on. I have general aches in my joints in my leg and my hip feels like it slips out of place. About 3 years ago I fell on to my bottom and slid down a wooden stair case and was convinced I had broke my coxyx. I wasn t able to sit square on my bottom for two years. I have also had a lumber puncture approx 4 years ago but find the site painfull. The pain in my back radiates from the top of my buttocks to just above my waist line. It feels like someone is punching me its a dull throbbing on occasion I get a stabbing pain. It is worse on the right side. Any ideas?