My 7 month old baby projectile vomited last night. She has never been sick like that. I can't think of anything out of the ordinary as of late with her behavior. Except the past two days she has been closing her eyes very tight and opening them like hard and fast. She is lathergic and sleepy. No temp but Light pink cheeks. Only doing about 2-4 oz of milk every two hours.

With a young baby, in particular, it really would be best to take her in to see her doctor. Might be nothing more than a virus causing stomach upset and general feeling of being unwell/lethargic, but better to have it checked out since you are noticing behaviors that cause concern.