baby seizures?!

🐵🙈
My 7 month old baby was really sick with a virus this past week. She had a really high fever too and started having febrile seizures. We spent 3 days in the hospital doing all kinds of tests just to find out it was just a virus. Well she's been 5 days without a fever or seizure so far. But today she started doing this weird head shake randomly throughout the day. Almost like she's shaking her head "no" really fast. But it's random, there's no pattern to it. Between 715am this morning when she woke up and now (640pm) she has done it about 6 times. It only lasts maybe 2-3 seconds but it still worries me that it might be some sort of half seizure. Anyone else experience this? Or febrile seizures? Could this just be a side effect?