Yes, I’ve been there.  I was extremely over weight, OK obese, topping out at 325 pounds when I was only 18 years old.  I would sweat just at the thought of going outside in the summer, clothes didn’t fit, I was uncomfortable all the time, out of breath at a simple task and my stomach was a wreck most the time.  That was 20 years ago and I’ve since maintained a comfortable and what they would consider a healthy weight but it’s something I have to be conscious of everyday.