Hi, my 2 year old complains about knee pain. Every time she falls on her knee she complains it hurts and won't stop crying all night. It usually goes away after a while but when it comes back it's non-stop crying. I took her to the ER yesterday and they told me she was ok but they didnt want to do any x-rays because shes still too small. I've read online alot of mother have the same problem so it worry's me