hello Mom's/doctor, I have even earlier posted when my child was 18 months and didn't respond to her name . now after 3 months she responds to her name but 75 percent. like when we ask where is (her name). she points out to herself. when in other room if I call she comes running to me.but when she is busy into play she doesn't responds. almost have to call 4-5 times then she says hmm or just look at us. Is it normal and how to improve her response ?