I have felt those spastic movements in all of my pregnancies. Someone explained what it was to me but I forgot; that was a long while ago. But it IS normal and many women feel it.
No question is stupid - feel free to ask whatever!
I have felt weird movements like this with all 3 of my pregnancies, I just figured it was normal, because nothing abnormal ever showed up on u/s. It's happened a few times in this pregnancy already but baby looks fine. I think it's just quick sudden movements. As babies get bigger, it gets harder to move around in there. I hope it's normal though!
I've experienced similar movements - different from hiccups - as this baby and my first had them all the time. It's like she's spazzing in there or something every now and then. I figure it's normal - doesn't happen all the time, and her ultrasounds have all looked OK - don't they look for stuff in the brain? Anyways, you could check with the doctor, but best not to worry too much - you're not the only one with a rambunctious baby. :-) Oh, and I don't remember if my first baby had these movements, but I want to say that he did, too - can't be for sure, though.
Most likely you are feeling a case of the hiccups. It's possible for them to have in utero siezures but like clysta said it's rare and doubtful it's happening.
It's possible, but it's very rare. I doubt that would be happening in your case.