Hello! I'm sorry to hear you've had such a long life struggling with these issues.
Let me ask, why do your therapists think you're doing well? Are you not communicating to them how you're feeling? If not, you should.
ECT can be very effective as an approach to improving treatment-resistant depression. Honestly, I'm not real sure if you'd be a candidate with the other disorders you have. I'm not sure if ECT would affect your other conditions negatively.
ECT is a treatment modality that is kind of used as more of a last resort, after years of trying more traditional approaches. In that respect, you would probably be a candidate.
The decision to try ECT is one you have to make carefully, with the input of your doctor...and weighing the pros and cons. There are some long term effects to consider, the biggest one being memory loss and some cognitive deficits . Everyone is affected to different degrees, some people are affected only slightly, or not at all.
I think you need to have a frank discussion with your doctor about how you feel, and ask him/her about ECT...if you would be a candidate, and what the risks are.
Good luck hon..let us know how you're doing...and what the doc says.