Craving alcohol even though I rarely drink

I wouldn't be able to say if you have inherited genes that would make you an alcoholic. But the fact to me that you seem to be preoccupied with these thoughts about drinking and being drunk...and drinking...and not drinking...and then drinking again, tells me that this is something that is indeed bothering you. To me..you don't want to mess around with something that you aren't sure about and which could potentially end up hurting you, if you were to become hooked on the stuff, so I suggest that you get to a counselor right away. Talk it out with someone who has more experience with these things. I would suggest making an appointment with a psychologist. Good luck.