HELP! Unlawful doctor

Hi everyone. I have no idea where to go or what to do. I am 10 years in with doctors. I have no one diagnosis if one at all but from picking apart my own medical history and having medical knowledge I have found out a couple different things but the problem Im having is getting the doctors to actually do the next step after physical therapy. I have been left go with a frozen shoulder since I was 16 went back to see my a doctor that usually sees me when my pcp is absent who is also the same doctor to find other findings or other problems who i recently just seen for all the same problems to be told I was a druggie and was messed in the head meanwhile hes be seeing me since I was 12 years old and my own mother was standing there when this happen. I was absolutely discussed with that fact he made that kind of judgement for just trying to be re prescribed my muscle relaxer instead he refused to do so then put me on an upped does of gabapentin to which is now 1500mg a day I take at 5'1 and 112 pounds and it does nothing for me. If anyone can give me any help it would be greatly appreciated. Im am only 24 years old. Heres a list of what I do have Hypermobility arthralgia, Hypermobility of joint, Femoral anteversion, Costochondritis LT, Impingement syndrome of left shoulder...YET nothing is done..Why??!!