DD is 10 weeks old and since about 2 weeks old she will scream bloody murder, like horror movie scream, while asleep. Or she will cry and cry and be completely asleep. Once we finally get her awake she is happy and smiling and quiet, probably wondering why the heck we are standing over her all concerned. I've asked my few mommy friends but none said that their babies did this. She doesn't do it every time she sleeps, but almost. We never know if we should wake her up or let her scream in her sleep. WWYD? So...not normal, right? Is it night terrors or bad dreams? Anything we can do about it?