My LO hasn't had a BM in going on 3 days. She is constantly farting though and is screaming all day long from the gas pain. We have tried everything, changes in formula, exercises with legs, tummy time, smaller amounts of formula more often and nothing is working. I finally resorted to gas drops this morning as I coudn't take anymore and neither can she. She won't nap and when she does she wakes up screaming from the pain. I don't know what else to do. I have a call in the pediatrician but haven't heard back from him. I just want a happy baby...she is so miserable.