I have had those symptoms for 40 years...nothing to do with one on one conversation...just happens to me....can't take a deep breath, keep trying, panic some more and on and on...This went away for about 17 years and 3 weeks ago...BLAM...back in full blast. My meds have been changed by I am anxious every day waiting for the next panic attack and concentrating on my breathing. I already went to the ER and to the Breath and Lung Institute and they find nothing wrong with me except panic/anxiety attacks.
I know how you feel.. It is so scary when you feel like you just can't get enough air!!!
This is a classic symptom of Anxiety/Panic disorder, see a Psych Dr. see what's going on. start work on breathing exercises, you can get this info from Dr. and on internet. breathing is not a cure, nor is Medication, but the breathing exercises will help big time to Stop onset Panic.
You know what, there are too many doctors out there. Not one has any experience treating anyone of hyperventilation, but they know everything the book says. Parrots!!!