This is my first post here. *hello*
I just wanted to see if I can offer some helpful advise.
I'm just starting down this road we are all walking in some form, or another.
And I'm also severely over wieght, disabled, and Glucose intolerant. But surprisingly
I'm not diabetic.

There a few other things but not as important.
What is important is that I've lost 35# so far. But this is just me.
Go to your doctor. Have them run some tests. See if they can help you figure out if anything is wrong.
Ask them what they recommend intake wise. My doc said 1500 calories. I find I'm full any where between 1200-1500 depending on how my stomach feels.
Also, thanks to some help from my fam, I'm able to go to the gym 3x a week.
This is what I do there:
13min steam room
Off to warm water pool:
10min yoga
10min leg stretches (cause I have issues with them)
20 min water jogging
15min upper water weights (arms, chest)
I use a calorie counter. If you have a iPod/android type device they are pretty easy to find.
I also use bento boxes to control the amount I eat. It works along the lines of
If the box holds say 500ml, then as long as you don't pack caloric heavy foods, it will work out to 500 calories. Check out
www.justbento.com for better info.
Basically, find out works for you and your doctor. Educate your self on food. Find an easy cook book to follow. I used students vegetarian cook book. I'm not vegetarian, but they have excellent, quick recipes that are filling and low calorie.
Good luck!