Formula problem SIMILAC

So my daughter is 3 weeks old she was drinking similac advance but 2 weeks drinking that milk she stared having some issues with it every time she will drink the milk she will cry and get stiff and you can hear her tummy making this noises so I called the pediatrician and the nurse told me to give her some gas drops , well it helped just for few days and the problem continued so I decided to switch her to similac sensitive well it helped her for a few days and now the problem is back I just talked to the nurse and she got mad at me for switching the formula and she set to give the baby 2 weeks to adjust to the new forumla , I really don’t know what to do I don’t like my daughter suffering for 2 weeks to see IF the formula works for her I need some help , I’m a 1st time mommy here

Ps her poop is good no constipation she is really gassy and she dose burp after every meal

UPDATE!!!

So her pediatrician did call me this morning and he is switching her to Enfamil Nutramigen, he will provide me with a free can , and my husband health insurance pay for her milk if she have any digestive problems, I really hope this milk helps my gummy bear my only concern is that this milk is based on iron I hope she don’t get constipado .... Thank you girl for all y’all help