Hi ab,
I'm sorry to hear you are in so much pain and also sorry for your recent loss.
Is your pdoc going down the list of available meds to try to find one that works for you? Changing doses etc? As you probably already know, it can take a bit to find the right one and then to get it to a therapeutic level.
I'm so sorry you feel like you're at the end of your rope.

I will keep you in MY prayers as well.
Best,
Okie