Seizures in Utero?

A little back story... I’m 26+3 with an anterior placenta. I’ve been feeling her move, strongly, from about 18 weeks.

Lately (as in the last week, that I’ve realized) her movements have felt different... almost frantic. It isn’t all day, just every once in a while. It lasts for about four seconds.

I know mothers have found seizure disorders in utero due to noticing changes in movement, and of course I’m going to bring it up to my doctor... but I’m wondering if any mommy’s out there have experience and whether or not you noticed a change in movement beforehand. Or do other moms feel like their babies move frantically sometimes?

I’m sure I’m just freaking myself out... but with the way the movements feel, I just can’t imagine what she’d be doing in there!!