That one upset my daughters stomach horribly. Any enfamil product tore her stomach up. We also tried gerber soothe and gerber sensitive. Those messed with her as well.
That's how my daughter was, with the exception of she slept all day and was up all night.... Literally. If she's gassy, you should definitely try a more sensitive formula.
infamil new born. it's the only brand I'm familiar with
Similac sensitive. That, along with soy formula, was the only one that has never made her gassy, fussy, or constipated.
It was a lot of testing different formulas before finding one that worked for her.