I am the same style.....I can go a few weeks with social normal drinking too. And then out of nowhere....2 or 3 days in a row of random benders. Blacking out, losing friends, God forbid I get in a care.....
It is tough facing a world so congratulatory in regards to alcohol, but, those whom care about you the most are the ones that are put off the least. Good friends must congratulate you for your achievement to better yourself.
THis is all so much easier said than done. Im right there with you and so is the rest of us.