water weight sorry! you cant lose 2,3,4,5,6lbs of fat in a couple days especially when partying, my body weight jumps all around even with my perfect diet and training routine it is just water weight tho! Im an all natural bodybuilder (have experimented with legal prohormone supplements) Ive bulked for a year and gained 40lbs! I kept the weight on for about 3 more months and then did a seriuos cut phase and lost 45lbs. The first 30lbs took about 2months (all I did was eat a maintinence level of calorie intake for 200lb male) then 10lbs more over another 2months and the last 5lbs took a month, so ive watched the scale alot I weighed myself about 3 times a day so Ive really seen how the body responds to different things over a long period of time. Unless your b@lls to the wall training in and out of the gym I wouldnt worry about your weight because you wont see a change until around 6-12months on an "okay" tranning regimen. And as far as alcohol, you should just take estrogen pills.... and while I think of it beware of : bisphenol-a (BPA)