Fussy baby

My baby girl is 6 weeks and ever since maybe 2/3 weeks old she’s been regularly fussy. We thought she wasn’t getting enough from me, so we started supplementing. we tried 2 formulas and both messed up her stomach pretty bad.

We went back to exclusively bf and my supply seems pretty normal and she’s gaining weight, pooping and peeing normal.

I thought maybe it was something I’m eating. So I cut out all and everything that can possible upset her stomach. But no, she’s still pretty fussy. Refuses to be put down and wakes up 5-6 times at night.

Anyone have advice??