Hi,
I agree with both DEE & STAGEBEAR--
This seems very uncomfortable (no pun) for you. TO thine own self be true. No one here will know what you do--you will know. So, with what you are saying about relapse and hanging on to old pills sure seems like a path to ultimate failure. I'd probably chuck the pain medication and if the back pain is THAT SEVERE then the ER may be your option.
Pain won't kill you-drugs will.
Please be careful....
Mark/Gun_S