This is a pretty basic explanation, but here goes...

I believe it has something to do w/the hormonal balance being thrown off-center for a little bit. When you LC and lose weight, you're fat cells are not only releasing the fat, per se, they're releasing toxins and hormones (estrogen is stored in fat cells). These hormones basically run around our system not knowing what to do and confuse our cycles (putting it simply). Once our bodies adapt to the new WOE, our systems regulate themselves and things return to normal, if not better than normal.

I had one crazy month and then all returned to normal. TOM's next visit was short, sweet and less 'cramped' than usual. That's how it is still, eight months later.

Beth (Elihnig) posted a link to this thread a while back, but it may help w/some of your questions.

HTH-
Nikki