My little guy has been sleeping through the night since he was six weeks old, he is three months old now… The past two nights I will nurse him and he will pass out and when I put him in his crib he will wake up almost instantly and start screaming. This is so unusual for him. Last night he was up until 1 AM and finally fell asleep. Has this happened to anyone else? Suggestions? I have tried to let him scream it out but after about 10 minutes I can't let him scream anymore