I'm 16 years old, about 2 weeks ago i collapsed at a friends house and hit my head and was unconscious, when i came round i was feeling very sick and drained.(Ive collapsed many times before but doctors do not know what is wrong "/, any ideas on this?) ever since this my stomach has been hurting really bad almost everyday and i often get really painful headaches, i eat a very varied diet, theirs normally days where i have no appetite and just don't, but then i get days where I'm really hungry and eat and then still feel hungry. I also smoke. I am on the contraception pill and i am sexually active, i might have been late taking a pill around the day where i collapsed, I'm not sure if theirs a chance I'm pregnant, could their be? if any one has any idea what could be wrong with me please comment really need an idea of what's going on :)