got a bad headache. dont know whats the cause of it.. hopefully is not because ytd at 3am i gulped down one glass of baileys then went to sleep.. remember waking up in the middle of the night feeling giddy-ish, then fell back asleep.. but then woke up at 0930 feeling perfectly alright.. only around 2plus-3 then started having the headache.. so is it the alcohol or its just that i'm too tired?