i'm 14. and i just started getting really bad pains in my tummy and my head and my chest and can't breathe. so i went to the doctor for my checkup and they were like, its just growing pains, you'll be fine after a few days....Well its been like 2 weeks and it's happening like everyday, like almost all the time... can't breathe, my head hurts, i feel like imma pass out, i get all shaky.i yawn like all the time, so i can catch a good breath,my eyes feel like there gonna shut..i can't sleep at all, the most i get is like 30 mins. i feel really sad all the time, i don't get why either.. >_< so i don't know what to do. my mom says that i'm fine, its my allergies, im kinda embarssed to tell my friends.. i'm like really really scared, could i have problems with my heart or lungs, am i depresses? help.