question: I dont know what words to use...but my son makes noise with his teeth while sleeping...just similar to the sound that we hear when someone is shivering with cold...first i thought the problem to be small so i contacted the doctor near my house...he told that it may be due to worms...he gave de-worming medications ...a single dose to be given once while going to bed...but that didnt show too much change...so i took him to child specialist...and what he told was that its just because of his naughty nature...he is too active physically and mentally too..and he said its common in growing kids...anyone in your house had this problem....is there anything to worry about this or its just natural?