For the last week or so my 7mo has started crying hysterically when put in her cot and pretty much as soon as I put her down rolls over gets on all fours and starts rocking back and fro frantically and crying. She can't crawl yet but can get up on her hands and knees. I have to keen turning her over but she just instantly goes back on her front. We recently went on holiday and prior to that were making progress on the sleep front. She generally settled well on holiday and although night sleep was bad getting her down was much easier than now and she wasn't doing the all fours thing although was able to get on hands and knees then too. I have no idea what the rocking on all fours means has anyone else had this?