i'm 19, turning 20 this august. i'm 5'3" in height and weighs i think 49-50kg. i had a previous hospitalization because of AGE, i'm anemic and bumped my head last june/july 2010. last night, i was so drunk, i bumped my head to a steel railings on the sidewalk. i loss my consciousness, i vomited, i don't know if it's because of the alcohol or the bump. it has no bleeding, but it's red and it's painful. i put an ice pack and then slept. what should i do?