Can you get heart burn at the age of 15?

Ug well i think i mite have heart burn. Ever since like 3 mouths ago its bin happening, but only sometimes. It happens when i eat something like pizza or Mc.D's. I dont usually eat much junk food because..idk i just dont like it much but sometimes when i do i end up getting heart burn and UGG it hurts. It only hurts like from my heart to the top of my stomic its strangeg but i hate it. Why am i getting this?! Am i to young for it??