Ive been suffering from the same problem. You're symptoms sound
exactly like mine. I also have chronic heartburn and am thinking the two
are connected, maybe gerd. No insurance so I cant go to the doctor.
I try to suck in air and it seems my throat cuts the flow off, takes 5 or six deep breaths to open up. Then sometimes the problem just goes away
completely. Im able to exercise fine so am pretty sure its not real serious
just stress and maybe reflux disease problems.