Hi CathyA,
Yes, your assumption is correct, I am female and I'm 25 years old. I have recently noticed that the last 2 times I had the attack was at the end of my period or the first day I took my birth control pill (which I have stopped taking). I have actually read that IBS can 'flare' up for women at different points in their cycle which seems like an issue I have. I'm actually interested to see what happens this time around! I am slightly anemic and have been since I was born but otherwise, there are no other medical conditions (Thank God). I will certainly start taking into consideration my cycle and the attacks, we may be on to something...