Taking a couple of weeks off is a terrible idea. Taking one week off is something experienced lifters can get away with after a focused period of peaking (like right after a competition).
Taking a couple of weeks of less stressful training to recharge your mind and let your body recover can be a good idea if programmed properly. Taking one week of less stressful training is a very common approach that many, many lifters follow.
Doing no exercise for two weeks, especially around the holidays, is a great way to put back on some of those 30 pounds you just lost.
What has your training and diet looked like these past 5 months?