<s>[INST] I feel nauseous, tired, light headed somewhat in a weird way, my stomach hurts, I have green poop, my lower abdomen aches and I have a slight headache. I try to sleep but I cant! I somehow feel as tho Ive done this to myself by overthinking my situation, I have a slight toothache but thats unrelated I think. Any idea as to what I should do or is this just my mind playing tricks on me? I have a crazy fear of puking for some reason it panics me when I feel this way. [/INST] Hi. Thanks for your query. The probable cause for all your symptoms of nausea, tiredness, pain in abdomen, headache and green poop is a severe Intestinal Infection called Gastroenteritis due to Waterborne infection with bacteremia. I would advise you the following:Get the tests:Blood-CBC for infection, blood culture and routine. Urine RoutineS tool- routine, culture and sensitivity. Visit a Doctor to see for vital and get an appropriate treatment in the form of antibiotic, metronidazole, activated charcoal, probiotics and intravenous fluids if there is deny Chat Doctor.  </s>