kschoenhaut,I get this symptom all the time. It is the more worrysome symptoms of the ones I get. I notice I do not get this every night but majority of the nights. My neuro says that he thinks this is another symptom of BFS. Sometimes my chest is buzzing so fast that I think my heart is racing. I check my pulse an its normal. My EMG is completely normal two weeks ago. Brain MRi completely normal. Doctor is running three more tests. SPEP to check a bit more for the big C, Lyme check, and and Immuno-assay to check for auto-immune.