Me too, BJ! And I have no ovaries......

I read that post acute withdrawal syndrome in drug abuse is cyclical too - roughly on a "lunar cycle' just like a woman's monthly cycle! It must just be how the human body is programmed......Who knows the complexities of it all?
I know for the first year after my surgery when I was on no HRT I used to sob uncontrollably at the same time each month, as if I was grieving for something. One night a year in when I was bad I noticed it was just before the full moon, and years ago before my hysterectomy at 36 I remembered that my period used to start around that time. That realisation made me feel so very low as I suddenly realised my mind was in distress as it couldn't 'find my ovaries any more.......

It's hard to explain, and probably sounds really odd but I've never been so distressed in my life. And it still happens now, at the same time every month