I stayed up pretty late last night, went to sleep at 11:30. I woke up today at around 5:30 having a stomach ache, went to the bathroom, thinking that was it i went back to sleep, but i woke up later at around 7:00 still having a stomach ache. I decided to take Alka Seltzer but as soon as i took some i threw up, i felt slightly better after throwing up, and dosed off, but now i'm fully awake and my stomach still hurts. How can i relieve the stomach ache?