In search of other women who 72h fast every cycle

I've recently figured out (finally) that fasting during the second half of my menstrual cycle is not ideal. I am now on the fourth cycle of fasting during the early follicular phase, and plan to keep it up. Do any other women do this? I'm going for 72 hours every cycle. Aside from women, do any men fast for that long once a month? I'm interested to hear experiences from either biological perspective, and especially interested to know if there are other women who have tapped into this.