had a scary manic episode. what do i do?

i had some sort of manic episode recently where i became completely obsessed with someone i knew. i was so jittery and high energy that i was barely eating and so, so sick. has anyone else experienced this? im new to knowing about my bipolar and the things it affects. i'm medicated but my meds don't seem foolproof at all times, i had another barely-sleeping episode a week before.