Hi i am 16 years old , i have been having continuously back to back headaches and stomachaches. Whenever i lay down i always feel like i have too throw up and i cough too make it come on up. I can't eat anything because it's like i lose the appetite for it. This has been going on for about a month now , and i know i'm not pregnant for sure. I don't know what it is, it maybe food poising, stomach urial, etc. I just need help !