My Daughter Since The Time She Was Born Has Always

My daughter since the time she was born has always cried, now it's to a point where it's excess, we've changed formulas several times and now we are on ellacare for infants,had a head ultrasound to rule out hydrocephalus, prescribed medication for reflux, but she still cries all the time, her tummy is extended to a point where the sides of her tummy go way past where her ribs are. We have an appointnent Tuesday to get an upper GI done (recommended by her GI) should I take her into All Children's Hospital as a walk in? It's to a point that all she does is cry and only sleeps for 5 minutes and wakes us and cries again she doesn't even want to drink her formula. Please help!