I am an 18 year old female who has for the last week had chronic nausea to the point of dry heaving and vomiting which only occurred in mornings and nights at first but progressed on to being almost always. This gets especially bad after I eat. I have moderate-severe headaches every day also, which also occur mostly in mornings and early evenings. I have gotten my period this month so I don't suspect pregnancy but I am not sure what this could be.