I woke up with the left side of my face swollen, could this be because I irritated the tooth by messing with it? Help I'm scared.

Likely infection. Not because you were messing with it over night. There are a lot of possibilities. Most likely it is an iinfection. If it is not getting worse see a dentist tomorrow. If it is getting worse go to the er.
See a dentist asap. Not sure how you irritated the tooth by "messing with it, " but if you are swollen, then get to a dentist asap.