3 month old fussy???

So my son is 3 months and a weeks old and has been so upset the past 5 days acts like he's hungry and screams go to bf him and that just makes him more mad it takes me some time to calm him and get him to nurse, he acts like something is wrong or bothering him maybe in his mouth, I don't see teeth, but I'm wondering is it a growth spurt or teething idk anyone else having any issues???