kat_

- Could it have been related to how and what you were eating? I've never been at your caliber of athletics or at your training volume but I know when I trained for a ran a marathon in '01, my periods didn't improve at all (actually, they completely disappeared) despite a lot of physical activity and a 30lb weight loss. I always chalk it up to still having a diet high in refined carbs and low in nutrients. It wasn't until I had everything lined up (diet+exercise+sleep) that everything normalized. Might be an idea to play around with tweaking your nutrition. Glad to hear that met is working for you and you're seeing your health improve!
To the OP - Results may vary but, as Kat said, most people see their health improve when they get everything going.