It seems like you're drinking a very moderate amount. I've had some myself. My weight did stall. I'm doing weights too. Lately my weight loss has started again without changing a thing I was eating or drinking. I've decided to try tracking a couple of ways of measuring body fat-- an impedance scale, a measure with calibers every few months at my employers fitness center, and a free online body fat calculation using measurements. I think I always was losing fat but for awhile gaining muscle made the scale not budge. So I'm going to get the best estimate I can about the fat I'm losing. I don't think I can give up every treat-- I say keep the "choc.milk" for now.