I had this exact experience after d-day and I remember posting about it and quite a few people saying the same.
I think I was always somewhat emotional/sad/anxious during PMS time. But once d-day hit I had a lot more to be upset about. I was barely keeping a handle on my emotions on a good day. Throw in the hormone dips and I was a sobbing, raging, mess.
Now 7 years later? It's still a rough time of the month for me, and I can pretty much guarantee if I am weepy or overly angry it's PMS time. But it is never ever tied to the affair or anything of that nature anymore.
[This message edited by SI Staff at 5:00 PM, October 1st (Tuesday)]