What Causes Low Back Pain And Pain In Hands With Cysts?

hi, i got hurt at work in 1995 and was a machinist, got hurt on my machine and resulted in 4 surgerys on my hand and a pronator result which my muscle was taken out and i was in therapy for 2 years after that and then gradually after a few years started back working which no job last for me from complications. i am a housewife and i do a lot around the house and in the yard and sometimes i willl get maybe 4 or 5 months of work a year, but now i am experiencing low back pain and in the middle of my back and my hand and arm i had surgery on is beginning to stay swollen quite often my fingers are beginning to slant and sometimes i don t know if the pain in my hand is coming from my bones shifting or the nerves, sometimes it is extremely painful. my doc put me on skelaxin800mg. and i have been diagnoised with scatia, does this have anything with my nerve damage spreading and i also haves what looks like cysts on all my fingers or could they be tumors?