Wow. ((((((thunderbear))))) that's a lot of stuff to have to go through.
I'm sorry for the pain you're in, that's a tough situation. I am glad your husband would moderate how much you'd take ... I don't know much about pain killers, but I do know some are more addictive than others. Perhaps talking to a doctor about another med with less addictive tendencies, or
check any other therapy/treatment that doesn't involve taking pills?
I'm glad you've "come clean" about wanting to deal with this, it's a hard step to make.