Why is my stomach so bloated? nd i have so much Gas?

Ok well i guess it started at the beging of this year and that was when i got really sick anny way. for some reason after i eat my stomach looks like i am pregnant and im a guy! it is like really embarring, And i am trying to get a six pack to. Any way after i eat i also get allot of Gas like farting nd burping nd that seems to get the bloating down. but i really wanna know why this is haping.Like i said tTheirs alot of bloating and gas. im a 15 year old male. 5'6-5'7, And i weigh 130. if that helps