Interesting about Vagus nerve - this can also be affected in Lyme Disease and can be cause of palpitations and other symptoms we lyme patients experience
http://simmaronresearch.com/2013/12/one-theory-explain-vagus-nerve-infection-chronic-fatigue-syndrome/
http://simmaronresearch.com/2013/12/one-theory-explain-vagus-nerve-infection-chronic-fatigue-syndrome/