My niece; she will be 4 in sept. does the same thing sense she been one....all i could say if ur any kind of religious is pray! pray 4 ur baby becuz thats all i do to for my niece...and when she wakes up, she be her happy-lil-joyeous self agin.
My almost two year old has done this for a long time. It's night terrors. Of course it never hurts to check with your ped to make sure :)
My 3 yr old brother and my boyfriend do the exact same thing... They have night terrors. If you notice a pattern its best to get it checked like 2 a week or if it gets more consistant.
You shouldnt wake her up or comfort her because it can be dangerous to you and her. She can do something to herself because she was asleep now she is awake and freaking out more because she doesnt know what is going on?
xx