My son is 7 weeks old and formula fed. He has always been fussy but it seems to be getting worse lately. I’m not sure if he’s colicky.

We started him on similac pro advance but after a couple weeks of him crying after feeding we switched to the similac for gas and fussiness but he still cries so much.

Has anyone switched to an entirely different brand and had luck? I don’t want to switch him unless I have to I just want him to be happy. I need help!