I'm 13 and I live in the Uk. I am a female. For a month I have been feeling sick and have actually vomited. My blood tests came out fine.I also have constipation for 5 days. I recently went but it was been watery twice and it was tan. I have fainted once for more than 2 minutes. I had a burning throat to chest pain on one day. They gave me laxatives and zantac which I already have.

I think somethings wrong.

Please help?