My theory is that she is starving herself, Way too heavy in the exercise and not enough calories to support her body, it is saying to her, HELP you are in a famine and a couger is chasing us. Some times we are to close to the problem, back off a bit and eat a little extra, Rule of thumb is 10 x body weight or very close to that depending on Activity level. She is an fit person so maybe 13 x body weight.

Diane