Hi everyone. I am about 30 lbs overweight and I just joined a cardio
kickboxing class. It's a pretty high intensity workout(I'm sweating from the
moment we start until we end) and I've been going 4 x a week for the past 2
weeks. I know you aren't supposed to weigh yourself everyday but of course
I am and I'm freaking out a little bit because the scale has gone up a solid
5 lbs in the past 2 weeks. I haven't really changed my eating a whole lot (I
was already doing a low calorie, low fat diet when I started working out).

Why is this happening?