Due to alcohol intoxication i was sitting but later i got a blackout and hit my back head on the floor next day i didn't remember anything but after releasing that i hit my head on floor i check for bump and pain but there was no pain and bump on back of my head but there is feeling of heaviness in my head so i got CT scan done after 14hr of incident which came back normal ... But still my head feels heavy what to do now ? It's been 48 hours and my head still feels heavy ...