I am 32 years old and had my 3rd child 1.5 years ago. Since Jan. 07 I have been doing kickboxing 3 days a week plus walking on off days. I do eat farely well most of the time but no weight is coming off. I feel more muscle than what I had before but that's it. Most everyone else in the class has lost weight as well as build muscle, but I haven't lost any. I am getting really frustrated about this and I am looking for suggestions. Thanks.