A question for the ladies

Hello ladies,

I have a personal question regarding stalls before and during your menstrual cycle. 

I have been on a stall for about 13 days now, and I am 2 days shy of hitting my 6th month post-op. Today, I started my cycle out of the blue. I typically don't have periods due to pcos, but I have had  a few cycles since my surgery in April of this year. Do you ladies get on stalls a couple weeks before your period arrives ?

I am like clockwork with my cycle (was before surgery too).  I always have a week that I go up a pound right around the time I ovulate.

I fluctuate around period time.

Yeah, my weight usually changes right before my period. I retain water or something during that time. I've gone up like 8 lbs so sometimes! But I always go right back down once I get my period. I don't know why.