Kim, had the same problem during my drug trials, because they had me on multi medications at any one given time, they blamed the side effects to withdrawals, as medications of one sort had to stopped straight away, like you said endep, they tried that on me under the guise of helping me get to sleep and help with pain, well it didn't work, but was great at stopping my bladder working, I have been through every pain medication on the market, all drugs to do with depression, anti spasmodics and anti epileptics, there is only one that I have been able to tolerate and that does work to some degree and that is kapanol, recent change over trial proved a bad experience, but I had to try, otherwise lose the risk of losing the one medication I can tolerate, the worse meds for side effects were the antiepileptics and antidepression drugs, followed closely by Methadone, that one made pain worse and every inch of my body.
I do have the stim implant, and lucky I have not had the problems with migration like you have, but the pain relief is on par with what you did get, but reverse when lying down.
The person who changed my life the most with coping with CP, and the only person who really took notice on what drugs were doing to me was my Psychiatrist, believe it or not he is part of my pain clinic at the public hospital I still attend, the pain doctor just kept trialling new combinations, where as he put a stop to it, it was rough coming down from all the meds being pumped in, even though once clean from meds, the pain was bad, but I was feeling better from not having all the side effects, it was also the time when they said they had not trialled kapanol, would I be willing to give it a try, I did but started at a low dose, to start I had problems with constipation and little else, it was then raised to maximum dose.
Funny though damage has been done now, when I damaged my shoulder, it was the usual treatment of cortisone injections, first one was alright but didn't do anything, second one they decided to give an extra strength dose, well side effects kick in, felt like a truck had just hit me combined with the worst case of flu, so now cortisone is marked on my list of no no's.
Even the flu jab which I have to have every year, can't have the normal flu vax, has to be the expensive alternative that is not derived from eggs , once you develop intolerances it seems a downward spiral to any other medication, I get lots of unexplained rashes that pop up any time of day, the itch can drive you crazy, not allowed to use soap based products, or any petroleum by products, vitamin D I can't produce, so it has to be high strength substitutes, and testosterone I don't produce , that is an injection every three weeks, all gone to since drug trial days, but you are never warned that this may happen.
Don