I have been battling being heavy for some 6 years I lift weights run everything for years my blood tests have been a little bump not much to be concerned about. Well after a heart attack at 38 following a strict diet and exercise regimen I am still gaining finally at my witts end I went to the doctor that little bump is hyperactive thyroid. I go for a scan Thursday. Why am i gaining and not losing. Will I lose weight. Should I get my thyroid cut out I am so aggravated. And to think the doctor wanted to send me for lap band ha. I don't eat but 1000-1200 calories a day. I have read heart breaking blogs of people having the same problem can someone please show me light at the end of the tunnel.