i hurt my back at work 13 years ago been on a lot of pills but my doctor put me on oxycontin and oxynorm can i just stop takeing them? please help me i went off them for 10 days but ended up in hospital thay punp so much oxynorm back into me but i dont want to be on them it gave me real bad pain in the head thay gave me a brain scan can said its the withdraall now im scard of this pills as i keep geting headacks