I am a 49 year old male that was in excellent health until Jan 05 when I was diagnosed with central sleep apnea. I also had day time breathing problems, shortness of breath, inability to take full breaths into my upper chest. I also had severe upper back pain at the time and bradycardia down into the 40's, and migraine headaches. I also had acid reflux, poor digestion and constipation. I still have episodes of all these symptoms especially after physical exertion like exercising. Before all this started I used to work out regularly with weights, swimming and floor exercises. I have been to cardiologists, neurologists, pulmonologist, and internist. No one has been able to sufficiently explain why I continue to have these problems. I finally went to physical therapy and the PT diagnosed me with Thorasic Outlet Syndrome and prescribed some stretching exercises, which did help. A neurologist thought I had fibromyalgia and suggested psychotherapy. When my muscles tense up in my neck, head and shoulder, I experience PVC's, headaches and nausea. I think that my vagus nerve or other nerves are being affected somehow causing this roller coaster of symptoms. Is there any way to diagnose and treat this?