If ECT (electroconvulsive therapy?) is absolutely essential, I guess you could wear a cute scarf over your hair until it grows back. I'm not so sure ECT -- which messes with your brain -- is a good thing, especially as you don't seem enthusiastic about it. But the decision should be totally up to you. Hair loss can be hidden. Let nosy people think you're going thru chemo (wear a pink scarf & tee shirt).