if you smoke alot that is probably the reason why your hand is numb but still has feeling in it, it will take quite a while until you dont feel that way, i use to smoke alot and went off to bct for 3 months and alot of running and marching made my toes feel numb after awhile, but you should get back all normal feeling, and honestly if you cant handle drinking dont be a stupid *** and drive 5 kids just got killed and both there parents in commas over here all cause from a under the intoxicated driver running from the police