Yesterday evening Tess (my 8-month old) had 2 head tremors that lasted about 30-60 seconds. She just involuntarily shook her head back and forth similar to the way someone with parkinson's does. It may be nothing but its enough to worry me of course. Both times happened after she woke up from a nap in her carseat which can be an awkward angle to sleep at so Im hoping its just a one-time muscle thing. She did throw up yellow (look like bile) though shortly after the first one so that makes me nervous. She hasnt been feeling well all week and had a runny nose and Im pretty sure she is teething so Im really hoping there isnt a bigger issue here as Ive already done some web-research on the head tremor and did not like what Ive read. Ive called the doctor and Im waiting to hear back so please YT family, keep her in your prayers