Does anyone else have experience of this? I can't get her to settle and sleep, sometimes for hours and hours. She will also cry intermittently but sometimes cries inconsolably for a long time, particularly late afternoon and through the evening (colic?). The grunting is really loud. Have tried raising her mattress slightly but have to be careful as she falls under the covers and scares me! Thought it might be reflux but infacnt gaviscon just made her constipated and worse.