Hi Gabe

Exams uncovered no issues.

Yes I wonder if there is an underlying physiological cause or (in my case at least) whether my anxiety is the underlying cause - athough this seems unlikely for most reading through some of the posts as many have mentioned they do not suffer from anxiety. And it is also interesting to note that I have tried to take a benzo when my symptoms are bad to see if it helps but whilst I feel much calmer my breathing is still the same.

I have been experiencing this now for around 5 months (the symptoms started gradually went away for a bit and then came back worse).

I was actually at the ED tonight because along with the SOB in the last few weeks I have had trouble swallowing - is this a symptom that has been mentioned before? The dr in the ED recommend a swallow test.