In my previous post, I forgot to mention that I also have had chronic palpitations, shortness of breath, fatigue, and neck pain that worsen with movement. Besides the things I mentioned prior, I have also seen a number of specialists including an allergist, endocrinologist, cardiologist, and cardiac electrophysiologist. The cardiac electrophysiologist diagnosed me by saying he felt I was dealing with an autonomic disorder. Although some of my symptoms matched, they all didn't seem to fit. Anyway, I went to the neurologist in March, and after looking at the MRIs of my cervical spine said all of my symptoms could be directly related to my neck issues. Basically, I have herniations, bone spur complexes, and spinal cord compression. He said the MRI clearly showed that the cerebrospinal fluid is blocked on both sides of my spinal cord because of these issues. The csf bathes the brain as it circulates around the spine and brain. There are other problems of the spine and brain that can cause this not to flow freely as well. For example, a chiari malformation. I was sent to a neurosurgeon who recommended artificial disc replacement at two levels, and he'd also remove the bone spurs. Bottom line, I would strongly suggest anyone with even some of the same symptoms (with or without the palpitations/sob) not only get an MRI of their brain but also their neck. As far as the diagnosis of an autonomic disorder, apparently issues of the cervical spine have been found to cause some autonomic disorders. Here is a link to one article:
http://www.nfra.net/fibromyalgia_rosner_6.
htm As stated in the article, "the relationship of the upper spinal cord and brainstem to cardiovascular symptoms is clear cut." Hope this helps someone!