Noticed patm at 17 years old. That is when I was set sail free into the world on my own. But looking back and I can add two and two together patm 'reactions' from people started alot earlier (around 5 years old) but I had never known the reactions to be associated by me. Anytime my breathing is altered for whatever reason, most probably anxiety people show these altered reactions. People have been coughing ever since, but I was never able to see with it. Also I remember feeling the most anxious at 9 y.O. And I started vomiting in class. I can see when all these events had taken place. I.e. prior to patm knowledge I was experiencing something which I can now see as falling off the anxiety scale that is anxiety had reached its peak height.