Hi Joe M Welcome to this forum theres a great deal of useful information here in regards to people who suffer with TBI/PCS.
You may want to read the post by arthurhlevine / The Pain of Pain Management and the use of opioids pro's and con's.
Theres also a good link to pain management written by Dr. Forrest Tennent on the use of opioids for pain management.
HTTP://PAINTOPIC.ORG/PDF/INTRACTABLE PAIN SURVIVAL PDF.
Useful information on the use of opioids for pain management.
I have considered the use of opioids for pain management as a short term solution for chronic pain. I was hit by a drunk driver 4 years ago and have suffered TBI/PCS as a result of my injuries and there was a great deal of nerve damage in the muscle tissue. I don't use pain medications at this time as I'm looking for a natural treatment for my injuries.
Hope this information helps and you find a solution for your health issue
Take Care Jeffn