Could I have a collapsed lung?

Sometimes people with Mitral valve prolapse occasionally can get an infection on the heart valve itself which would cause some problems MVP also causes anxiety, palpitations, headaches and more. It doesn't sound like the Gp is finding the problem, go to a lung specialist, to eliminate any problems with that and reure yourself. Still short of breath speak to your GP about complications that occur sometimes with dental work and Mitral valve prolapse. To stop the irregular heart beat immediately, do the valsalva maneuver. Sit and push down like you are going to the bathroom, the downward pressure on the diaphragm stops the irregular heart beat and restores the regular rhythm. I have it myself, the most I ever had to do the maneuver is twice and I am a ok. Acid reflux can cause shortness of breath that goes away with reduction of the acid, don't eat anything for two hours before bed.One other idea that had occurred to me, did you have an infection in your wisdom teeth at all. Maybe there is residual infection in the bone of your jaw.. A collapsed lung would not expand, a lung specialist would be your best bet. There are other tests besides an x-ray that are better for diagnosing lung problems.