I've been doing 30DS every other day, in the morning, and yesterday was the first "day after" when I wasn't sore...  that means I'm getting stronger.  I've only done L1 so far, but I'm really okay with that.
I'm starting to get the PMS bloaties and ate a huge amount of potato salad last night; threw it up.  Prior to that I've actually been doing pretty well with food.