Hi, im 22 yrs old, ive had a loss of appetite for about a week. last night i started feeling nausea. this morning i am very dizzy, if i turn my head i feel dizzy, and like im about to vomit. when i stood up a little while ago i was so dizzy i fell. I also had green stool this morning. I have checked my temperature, its normal 97.5. What could be wrong with me?