im always feeling sick.. im always nauseated and i get really bad stomach cramps im 17 years old i dont think im supposed to be feeling this way.. ive checked im not pregnant i dont know whats going on and i always get nausous and pains in my stomach.. although i never vomit im sick of feeling this way.... the doctors always say its depression, anxiety or constipation but ive tried so many different medications for it they deffinatly arent the reasons.. i barely eat, i am always nausous and i can rarely ever do anything i want to do i always have to sit down because i get terrible headaches and im always sick so i dont know what to do please help me.... and everything i eat or drink makes me sick... ):