Teething or just fussy?

Ma

So my 2 1/2 month old goes through times of day where he just screams and screams.

I can’t even nurse him he’s so upset... one time i just rubbed bottom lf his gums to try getting him to stop screaming, well it worked! Then he latched and ate. Now he’s attacking my thumb chewing on it.

Not to mention he’s been kind drooly. Isn’t this early for teething?

He’s my second baby but honestly I can’t remember much of the first year 😂