My Health.

I am an extremely picky eater, and I eat a lot of junk food and barly anything active. I drink tons of milk though but hardly ever any water. I am 4’11 and my weight goes up and down a lot 90lbs is my skinny weight and 105 is my fat weight. I also get constipated a lot, do you think thats because of my horrible diet? The only veggie i eat is corn, which isn’t even good for you.. when I eat, i can wake up with a skinny stomach and through out the day when i eat it grows each time and by night its huge, do you know why that is? I’m really curious to why my body does this. Am i alergic to some things that I eat is that why I bloat? Or don’t work out? Or that my torso isn’t that big considering i’m not even 5 foot. I am also March-1994. I don’t nkow if age has much to do with any of this. Please get back to me and reply!! Court Markos