I stopped pumping about two weeks ago. I found Enfamil premium because it was supposed to be the closest formula to breastmilk. She was on similac pro advance before we switched. I switched because Enfamil was supposed to be better for her. Anyway, ever since we switched, she has been very fussy and gassy and she spits up at every feeding now. Has anyone else experienced this? What else can I use? Please help. Thank you. ☺️