It's almost exactly 4 years since my hysterectomy. I posted on that sometime before, under the title "Uterus-free womanhood".
But even without a uterus - and what ever gender or combination of genders we all are - we all have hormone cycles. Even after menopause. Even when on hormones (since the body still produces its own), and despite the best work of anti-androgenic meds for those on them.
This afternoon I realized that I was experiencing what would be PMS if I was still menstruating.
I had what I've learned over decades of cycles are my classic symptoms: I was up most of the night Catastrophizing (over bills now, when I was in college it was over grades, when I worked for others it was over job reviews/performance), and I spent the day crabby and practically looking for fights. Finally I realized what was happening. I had gone over EVERY bill by then.
I don't have a clue about how fast or slow my hormones cycle any more. I'm gonna note this on the calendar and try to keep aware of this more in the future.