3 month old teething?

Erin
My son is almost 3 months old and had some of the classic teething symptoms over the weekend a little bit a drooling crying irritability decreased appetite red cheeks and ear pulling. We weren't sure if he was teething or if he had a bug since he started daycare last week. Has anyone else noticed the same symptoms at three months? From what I've read it seems like teething shouldn't start this early but it is possible.