Hi DD, Yeh I sure can relate to your experience.
I was quite ill when I was young and therefore always chubby - illness in my day meant lots and lots of recuperating by lounging about! I have actually been slim three times in my life and each time determined not to put it back on. Then along comes times of distress and the choc bars and cream buns are such a comfort!
Now, at the age of 76, I find it extremely difficult to get the weight to shift and it's taken me from the beginning of April till now to lose just 11lb! This time I am so determined that I want to get rid of all this excess weight especially as I now have various ailments to contend with, diabetes, high blood pressure and a very bad spondilosis of the spine.
So do take as much care and effort to get a better and healthier body while you are young enough to enjoy yourself. Keep coming on here and you will get lots of support.