Rheumatoid Arthritis And Gabapentin

I've read some of you responses concerning RA & Gabapentin usage. I have been taking Gabapentin since 2000 for various pains throughout my entire body. I have recently been diagnosed with RA, but doctors will not put me on the required meds because I have COPD & Polycythemia which I am continuing to aggravate because of my smoking addiction. For the past month, I have had excruciating pain in my hip that radiates to my lower back and throughout my right buttocks. The pain is so bad, I have had to begin using a cane. I have no insurance. I have increased my dosage of gabapentin (which has been OK'd throughout the years by my DR's) to try and reach a comfort level of reduced pain. I counter the drowsiness by drinking more coffee to get through my workday. I obtain "pain-free" periods with the increased Gabapentin usage, but I also seem overly energetic or "excitable" during those pain free periods. (reminds me how I used to "feel" before the pain began so long ago  . .about 15 yrs already). I'm a 55yo man, have many other health issues as well, including deep depression & PTSD. Because of insurance, I'm only purchasing the Gabapentin and have also started using Turmeric to TRY to help with all the other issues. The Turmeric seems to help, so far. Is there any problem you can see with the increased usage of Gabapentin to become "pain-free" and the mood change during those pain free periods? I cannot afford numerous DR visits w/o Insurance and have to earn a paycheck.