I went in for my first physical in something like 15 years. Being 32, weighing about 410-420 and having been overweight since grade school I was fully expecting some combination of high blood pressure/diabetes/heart issues. But nope, nothing, perfectly healthy aside from my weight.
Opened my eyes to how lucky I was and I couldn't really not do anything about my weight anymore. I had tried dieting, lost about 40lbs but gained it all back and then some within a year. All the info on the surgery I could find made it clear it was the best option.