Since my endoscopy and colonoscopy came back normal, I must have IBS. My gas and gurgling are worst during PMS and heavy days of my period. I eat ginger and drink herbal teas like chamomile and mint when Aunt Flo visits but they only keep her at bay temporarily. They can happen any time during the day but get worse at night and I can't sleep! Whoever wrote the rules in Leviticus not to sleep with your wife when she has her period sure wasn't targeting heavy sleepers.