Hi, my LO is just over 4 weeks old and for about a week and a half has been projectile vomiting after some of her feeds. She doesn't seem bothered by it and will then have a sleep or have some more milk but it's obviously worrying me. It's like a jet when she's sick and it has been increasing a bit over the past few days. The dr has said to monitor her weight (she is still putting on weight) and then review it but it could be a condition which needs a small operation to fix (he's not convinced it is this though as it's more common in boys but it has started at the time they say it should ie 3 weeks). My OH has said she's probably just a sickly baby but I'm worrying about her. Has anyone else's LO ever vomited like this and it not been anything sinister? Have they grown out of it? Or has anyone's baby had this condition? I'm a natural worrier and so am panicking a bit!