Jiu Jiu's BJJ Blog:
One subject that wasn't touched was competing...Not only are you affected by discomfort, mood swings, cramps, breast pain, headaches, tiredness possible embarrassment (I like to compete in a white gi) but, it makes the weight cut a nightmare! Water retention, chocolate cravings, salt cravings, etc....
Believe me, I have thought about asking Gustavo to run his tournaments at a different time of the month lol
Here's another interesting story on this issue:
Chris Cyborg doesn't make weight do to "Girl Problems"