hello my self nitin and my child is two year old. my child is stay almost ill most of time and many times suffered from neumonia ..and we treated with specialist with anti bio tics dose,and medicine after that he will be fine, now he is completing two years but still not started to talk any word properly so we scare when we say tata with hand then he also replied with tata so when we used body language he understood and done it all work but he is not locate when i called with his name...sometimes i checked with doorbell when its ringing he turn around but i speak he didnt. what i do my doctor is suggested me bera test i m very scaring.is my baby normal? is this medically treatable? reply me urgent,,,