I have a 7 months old boy, he crawls faster & bang his head some times, He screams while sleeping during afternoon & night nap around 2am or 1 am. He is shaking his hands and makes a loud noise with his eyes closed tight ,he could never hear what ever i say to calm him, he never opens his eyes for sometime. please help me.. it will take sometime to calm him, i need to turn lights on & bring him to realty to let him know he is alright, he sleeps next to me, we do have night lamp. i stay with him whole day & night. i am worried is he scary baby. is this common at infant stage. please help me out.