birth control
"So I've been on Tri-Nessa for almost 2 months,and each time i start a new pack i get bad stomach pains and then on week 2 everything is back to normal. Since I've been on it i vomited twice and anytime i eat something my stomach feels empty, even though i ate a lot. My periods have been coming on time and my face is clearing. My only problem is the bad stomach pains."