hi I am a father of 1 year 1 month old girl. Of late she has started yelling a lot. she doesn't talk but yells a lot. no matter how much I try to divert her mind she will yell for couple of minutes and then stop. she doesn't cry with yelling. it is plain and very harsh sounding yelling. I sometimes get afraid as sometimes I feel it might hurt her voice. someone told me it's common for children this age to yell. please help.