Welcome, Lona!
I, too, have spent the last couple of years giving up vices & going through some very tough counseling to find out what makes me tick. My weight has always been an issue (I'm currently about 65lbs overweight)... and I feel the same as you - it's my "last real issue" & I really want to learn to deal with it. I'm coming up on my 32nd birthday, and I think about diabetes, breast cancer (my mother had it), heart disease (family history) and all the other problems that obesity causes - I felt like I was killing myself by eating so horribly, never exercising and not sleeping enough.
Anyway - I relate.
This board, and others like it, have helped me tremendously. Just reading the stories of others, knowing that I am not alone in feeling like that and hearing some amazing success stories has been truly helpful. I spend hours reading through threads, all the personal stories and the strategies and plans. It's a constant reminder that I'm not alone and that I just can't give up this time. I'm inspired daily by the courage & determination of so many others seeking the same thing as me... a healthy life.
BTW - find yourself a GOOD doctor. I prefer female physicians, honestly, in my experience they are more understanding and patient. But anyway, you should have a complete physical to find out if anything is wrong with you (chest pains) and how to fix it. It could very well be anxiety... I went through a year of panic attacks, they are ugly & they are REAL.
All the luck in the world to you - and feel free to PM me anytime!