4day old Newborn... non stop crying

Alexis • Im 27, you can call me Lexi 💕 First time mommy to a baby girl 👶🏽🎀 now baby boy 👶🏽💙 Was pregnant with identical twin girls💕 Guardian Angel 👼🏽 4/26/17 Miracle Baby 💕🎀 12/13/17

I dont know what to do 😩 since last night my daughter was constantly crying and idk what is wrong. I fed her, burped her, changed her diaper. I think shes gassy and looks like she has a diaper rash. I wish she could just tell me what is wrong!