Aw, yes... they aren't a fun thing to go through 😔 My son had a febrile seizure in November, and I also had no idea what they were before this happened! He woke up screaming terrible--which isn't completely out of the norm for him, but it was more intense. My husband brought him to the bed to nurse, and I started feeling him twitch. I yelled to my husband to call 911, and I went with him in the ambulance. It was awful. The good news is that they are normal, and it's caused by a sudden spike in their temp. When I put him to bed at 7, he was fine, but he had the seizure at 11 and his temp was over 103.
I learned that you actually don't need to go to the hospital when it's a febrile seizure, but I am DEFINITELY glad I did the first time. There is a period after the seizure when they are in a complete daze... that was almost worse than the seizure for me, because it seemed like my son couldn't move his eyes, and he was just crying inconsolably. After a few hours, they are fine. Since he has had one, any time his fever starts going up, we give him tylenol. I am normally not a medicine person, but this is a different scenario.
I would ask you pediatrician about it next time you're there, just so you're educated. I completely understand how you feel... It would have helped me so much to understand what it was! I hope this helps a little bit.