T.S.
I think that you need to answer a few of the questions that were asked. I will say that when my youngest was 2 his pediatrition said that if he wasn't talking by 2 he was going to have him tested. In my case, I knew that nothing was wrong. He could hear amazingly well (if you whispered the words chocolate milk from the next room he would come running). And he could follow 2 to 3 step instructions well. He could 'communicate' exactly what he wanted, he just wouldn't talk. He had an older brother to explained anything that I wasn't getting. At just 3 months shy of 3 years he starting spending more time around kids his own age and with in a matter of weeks, he was talking. Now when you ask if he ever stops talking, he happlily tells you 'no'.
T.