Formula and supplementing help!

Samantha • Married to my best friend 08.09.14. Evelyn Aline 03.22.16 and Claire Elise 10.10.18

FTM!

I am not producing enough to only give my daughter breastmilk so I supplement with formula. I was giving her Similar in the hospital becauase I wasn't producing. Then we switched to Enfamil Gentelease and she was still gassy and fussy even though it was meant for gassy and fussiness. (And I mean to the point where she would wake at 7 am and then not take a nap any longer than 20 minutes and be awake and fussy until 6 then nap and be fussy from 9 until 12am. Some days better than others, but far and few in between.) We did that for over two weeks. Today we switched to Gerber gentle. We are one feeding down and seems to be okay.

My questions are, who is supplementing , what formula are you using, how long have you been using it and what's the outcome been like?

I am just frustrated at this point. I probably shouldn't feel this way. :(