To add to previous comments: Alcohol poisoning , Impairment such as judgment, slurred speech, drowsiness, coma, blackouts. Additional factors include decrease in physical health, liver damage, cancers, high blood pressure, and stroke.
Headache, vomiting, blurry vision and alterated personality are four common effects of alcohol. The 2 first ones occur hours after the intaje, the 2 last ones occur a little after and during the intake.