We have a normally well sleeping 20 month old. She's just getting over a cold and we just got back from vacation. Since we got home, she goes to sleep, but wakes up about one hour later, screaming. My wife will pick her up and rock her, but my daughter won't calm down. It almost sounds like she's being hurt when she screams. It usually takes about an hour for her to calm down. If I try to take her, the screaming gets worse. She's left bruises on my wife's arms where she's pulling her arms around her. Any other time of the day, she's fine and has no anxiety problems. Is this just her re-adjusting to being home? We kept the same schedule while on holiday, with the exception of the plane ride home. Any help would be greatly appreciated.