21, female, headaches & nausea for 4-5 months, both worse in the morning, changed pattern twice after 3rd month.dizziness, vomits, weightloss.otc don't work.

Well, It may be: A couple of things. It may be migraines causing headches and other symptoms, it could be nausea. I would focus in on meds that are over the counter as you could try them today, like ranitidine to decrease stomach acid. I would inquire about your sleep and anxiety. One one extreme you may have an ulcer, have some bleeding and anemia then, as a result the headaches. Prilosec otc would be good t.