Hello dragonfly,

well from what i have experienced they can start crying in 1 day, but my baby started from about 2 weeks, although we did not know at the time what it was.
the major signs were if we were holding her and we tried to lie her, either in our hands or on the couch, she would scream. we thought she just wanted to be held but she would also do it if we held her lying down. another one is throwing up a lot and also cat napping during the day.

i have heard that from 6 weeks a child can go through a difficult stage, i know mine did and and then get better again in about a week, i suppose it is like a growing thing. they almost go from a new born to a baby in a way.

well i hope i helped a little, and if you need to know anything else just let me know as i know a lot about reflux. Daniqa is on Losec and 20mg A DAY. it is hard but like everyone says, they do grow out of it. some longer than others though.

good luck
renzy