Started being colicky at 3months? Is it Possible?

Erin
Hey ladies, 
so my son is 3months and he has been crying like crazy lately like the last month or so but when he was a 1-2 months he was awesome, never had any issues. I've tried switching formulas and doing so different routine throughout the day. I've even consider teething as a possible thing because he's putting his finger and things in his mouth now. But has anyone had this happen to them or herd a baby being colicky later on? 
Thanks