I have RA and OA need help. Mesomething!

I have started joint pain all most many joints and it's now making my life I can't sit I can't walk properly. I had to to a orthopedic first he said I have symptoms of RA so I have to go to a rheumatologist so I book appointment and he gave me all tests but my every test Ra anti ccp crp ana all negative and only esr very high. He said he didn't think is rheumatoid arthritis now my one knee is 90% not working and other is 40% not working. My elbows fingers wrist , foot everything inflammed. I have done 10k rupees test with a good diagnostic. I belong to a very poor family can't afford to test twice a year and if a see a new rheumatologist he will give me same tests again and I am quite not sure that he going to give me medicine for RA or not. Because earlier doc only given me painkiller and some vitamin with painkiller. I return to Orthopedic he given me saaz ds tofe 5gm and I feel new inflammation stopped but he can't continue as he is Orthopedic not rheumatologist. suggest mesomething