Hi I'm new to this forum just wondering if anyone can help me out.

I've read a lot online but nothing I've read is specific to my problem.

I'm 17 and very much underweight, I'm also fairly short. I have a really fast metabolism - I can eat so much crap and never notice a difference in my weight. My question is what is the best way for me to put on weight? I've read things about protein shakes, eating alot and hormone supplements. I find it almost impossible to eat alot, I generally find it difficult to eat a normal amount each day. Also I find that in general I think I do have a low testosterone level. Would it be a bad idea for me at my age to take hormone supplements?

What would people suggest as the best way to put on weight? Besides eating a lot as I've tried it so many times, I've made out diets and truly tried my best to stick by them but I end up feeling sick.

Oh by the way I don't get much excercise - ie: I don't play any sports, the most active thing I do is walk. Could this be a cause?

Thanks for any help.

Carl