Thanks for all your responses guys. I'm back to work now so I don't have too much time during the week. I'm still thinking about the whole topic and hopefully will get some conclusions. Before i start any treatment though I'll try avoid alcohol completely.
EndGameNYC -
well It's not that my GF noticed something weird, she is just scared of the weed itself as she doesn't really know any facts especially that my country is filled with this propaganda lies about narcotics. Her argument is that "when you smoke you are happier and that makes me worried" well kind of silly to me but still. I don't smoke as much as i used to, 3-4 joints a week these days. I used to smoke a lot lot more but i don't feel any strong need for it at all. It's just about the alcohol...
Anna -
Well he just knows, not everything you can hide. Your eyes still stay shiny for couple more hours always and then yet i don't really hide it. I'm the kind of person who doesn't hide his way of life.