Why doesn't your doctor know and what kind of a doctor are you going to. Is the doctor a ( r. A. ) DOCTOR THAT HAS YOU GO TO A HEMOTOLGIST ALSO FOR BLOOD WORK. And also a orthopedic doctor has this education. For you. Have they ask you to take physcial thearpy. I go to 8 doctors and take 25 bottles of pills a day some are twice a day ---3 times a day--and last but not least 4 times a day. I cheat sometimes cause i just gwt tired of pills. Plus other treatments.. I zip lock bags for the bottles of pills for marked before breakfast, 1 hour after, at lunch, supper and of course " bedtime " its hard to keep up with of did or didn't take them now. I used pill cases for all week but i would dropping them then i have to figuer what went where, i've took them long i know who's on first and what's on second and i dont know who's on third ??????????? Thats because who's on first.....Remember
Bud abbott and lou costella at the baseball game.
Have you had x-rays, / mri's / cat skan / ?? Done on you and what were the results
You need to find out soon. I wish i would of gone to specialists long time ago. Family doctor are ok for colds and ect. But specialist studied in just one thing in that field. So if go to several, your whole body is covered by doctors haha
They help you more. Even my eyes is with a specialists. Get old and the best treatment money can buy even if your poor
(IN MONEY) BUT RICH ( IN LOVE OF FAMILY. ) YOU CAN GET THE BEST SPECIALISTS BECAUSE YOU ARE ON MEDICARE AND SICK & POOR
Take care friends 
God bless nanadee 