I agree Steven, a nutritionist good do wonders for you. In fact I could stand to see one and lose some of this extra weight I have.
100 pounds is extremely light, it could be genetic but I think maybe you’re malnourished, I would try to eat more but don’t eat junk food, you still need to be eating healthy. It would also help to know your height.
Myself I’m 17 and I’m 6’ 1/2" and 215 pounds. I think I’m a little overweight but just know that weight problems high or low can be fixed, it just takes commitment, don’t give up too early. Man and I know how you feel all I can think about is baseball, in fact I’m actually in class right now, I’m supposed to be making a stop motion animation but I’m on here instead. :lol:
Anyways, if you work at it I think you can succeed if it’s what you really want to do, remember not only do you need to put on some pounds but you’ve gotta practice, practice, practice. And for someone your size I might recommend momentum mechanics but don’t take my word for it, wait for a mechanics guy to tell you that before you go out and try it.