I have a lot of weight to lose also. I really feel for you because I've lost a couple of years too (maybe more), although not with as much amnesia, just sort of "ruined". I'm so sorry all that happened to you. Exercise unfortunately seems to always have to feature in any weight loss plan. I am challenged in that area too by agoraphobia, COPD, and a bad back. I hope we all will be able to get our weights back under control.