First and foremost, remember that you don't drink anymore...period. All of the stress and commotion that goes on in our lives will always be there...and drinking won't solve any of it of course. Your addiction is simply trying to tell you otherwise...and its full of BS.
What you are feeling is life...raw and unadultered, and it is one of the hardest things about sobriety IMHO. Our default reaction was to try and run away/hide in a bottle - but all that really just postpones the inevitable. Talking through things here is a great idea - it starts teaching your brain that there IS a better way to deal with stress and that problems can be worked out without alcohol ( as much as our addiction want's us to think otherwise ).
How about setting up a schedule for yourself while your BF is out of town so you have "something to do" constructive each hour of the day, rather than waiting for the AV to catch you unawares.