Drinking 2 handles (1.75L) a week, dangerous?

Started drinking 2 handles a week 3 months ago. I am 23 have not struggled with alcoholism, and do not expect serious withdrawl symptoms. However the pain in my organs and body is hard to describe, gives me pause. I went to my bottle tonight – struggled hard to put down 2 drinks. What kind of damage can drinking in this way have? What would you be worried about?