I was feeling a little low blood sugar this morning. i quickly ate a banana breakfast bar and then later a pear. after a while, i felt head heavy and nauseous. then i had a fruit tea. eventually i vomited. still feel a little headache. ?

Doctor can evaluate: Usually, a doctor can evaluate if nausea or mild vomiting lasts more than a day or two. Nausea can be due to many things, such as: stomach virus infection, other viral infection (such as flu), some bacterial infections (such as strep throat), acid reflux (heartburn), gastritis (may be H. pylori), gall bladder or liver disease, certain cancers, pregnancy, kidney diseases, medications, etc...