15 year old female, experiencing multiple symptoms. should i be worried.? Hello, I am 15 year old female about two weeks ago I was feeling stomach sick and threw up about 5times,had a fever , felt weak,and had no aappetite. Since than I still felt weak and stomach sick and have a very little apetite. Today my throat started hurting bad,have abdomen pains,back pains,headaches,body ache,naseu,dizzy, tired,weakness. What do I have.? What is the treatment.? Should I be worried.?