Ok. I waited. I said nothing. I waited some more. Now I have to say....
neener, neener, neener - welcome to the ravages of getting older, younguns

Been there, felt that, been through, went around the block and came back to do it again. Here's the short version - you ain't 16 anymore and your body is beginning to fail

I'm getting a huge kick out of it, but you shouldn't. You are definitely being told something. Your lifestyle (eating habits and possibly lack of exercise) are going to kill you, much more quickly than you'd like, if you don't listen.
I was lucky in some respects, I stayed super active physically until around 27, when I got into grad school and learned what it meant to sit at a desk for inordinate amounts of time. Couple that with a few too many leg injuries and I suddenly found out how easy it was to eat everything and never work out. It was awesome. My weight went up to 230 and I started to have esophageal reflux, intestinal problems and developed an intolerance to caffeine. Lemme tell ya, that caffeine can do one heck of a job of cleaning you out. But you learn ways around things

You learn what you can and cannot eat or you learn ways to "coat" your stomach so you can eat the things you love (and I don't mean pepto - having some starchy food in there for a bit before injesting wings or caffeine can work wonders) even though you shouldn't.
About five years ago I was playing in our high school alumni basketball tournament. It used to be a real fun joke, I'd play three games a year, three days in a row and that was all the real exercise I'd get. After the first game that year we went to the bar. I felt like crap. I was dizzy, pale and really short of breath. I wasn't sure, but it felt pretty close to a heart attack. I was 36. It wasn't, but I couldn't drink beer for about two hours, I only drank water. I. Couldn't. Drink. Beer.

I wanted to, but was too busy trying to breathe and not fall over. That's a wee bit of a wake up call, no?
As far as food goes, I still pretty much have a cast iron stomach - only caffeine on an empty stomach will kill me. Everything else I can take. But I can't do Coke for breakfast anymore. I can't do soda/pop and chips for lunch, I'll pay the price.
Sage advice, listen to what you're being told Kevin. You're young enough that your body will still respond rapidly. An old fart like me? Rotsa ruck, it's a huge effort to lose weight and I have to be very careful what I eat. Most candy is gone from my diet. I'm on diet pop pretty much exclusively (oh how I long for Coke Classic

). I still eat too much fast food, but when I do, some other meal during the day goes missing to compensate and those hunger pains are no fun. That or I opt for those "healthy" options - the Turkey BLT or an Oriental salad. No more double Quarter Pounders supersized. Exercise is necessary, if not horribly fun - rowing, basketball, weights, stationary bike, running - all has to be done. It all sucks for the most part (basketball moreso for what I've lost in skill and speed thanks to 10 years off).
Good luck.