Anyone use Target brand of similac sensitive?

Daisy166

If you use the up&up version of similac sensitive how do you like it? Did your LO adjust well to it? I started it yesterday and LO is acting a little different. It took her forever to fall asleep Last night. She kept fussing in her crib. Not really crying just squirming around. Wondering if her belly was bothering her. Should I wait a couple more days to Let her system adjust?