Hi,
For years I've had more sz. each month when the hormones are changing my epi told me it was because the estrogen level was increasing causing more excitement while the progesterone level decreases and progesterone helps calm the nervous system down.
The type of sz. you are describing sounds like a aura (simple partial) sz. this happens to me when I have a cp sz. I start to see colors flashing back and forth in my eyes and then I blank out sometimes where other times I don't. Here's wishing you well and May God Bless You!

Sue