Throwing up still dont feel better.

I didnt drink THAT much. I fell asleep and woke up feeling nauseous with a bad stomachache. I went to the bathroom to relieve it since my stomach did NOT feel right at all and i threw up just a small amount not a lot. My stomach still doesnt feel good after that and i dry heaved alittle bit after but nothing came out. I still feel nauseous and my stomach hurts still but not as much as before. What should i do?