My DS, who's 18 months old, just won't answer his name when we call him. As a matter of fact, he barely answers anything we say to him.
His hearing test was ok when he was born, but hasn't been tested since. He talks the limited few words he knows ('out there', 'nan nan', 'no', 'yeah', 'dada', 'gandad' - for grandad - 'aldair' - for Alfie, ILs dog)

Any thoughts? I never really noticed it because, and it pains me to say this, I work so much that I just don't notice things like that till someone mentions something (gosh that makes me sound like a horrible mother )