Vibration in left side of chest

I want to add one more person to the list of people feeling this peculiar vibrating sensation in the LEFT side of the chest.  It feels like a vibrating cell phone and lasts a second or so, stops, and then my occur several more times.  I have no known heart disease and have had two ECG's this year that were normal.  With so many people describing this sensation it has to be something identifiable - not just a muscle spasm.  If any Drs are reading this please consider studying this and not simply responding with a guess as to what it might be.
DebW1954


This discussion is related to Odd vibrating in chest.

[Encephalomalcia]

I am not a doctor, but I have heard this before from a friend.  She was vibrating in her chest and back along with severe chest pain.  She was taken three times by ambulance to the hospital and had three angiograms.  She was told that she was too young, only 30, to have heart disease and it must be her gallbladder.  It turned out to be her artery spasming in her heart.  She had to have two stents put in side by side to keep the artery from spasming.  She was only 30 percent blocked which is unusual for an artery to spasm with this amount of blockage.  Her cholesterol was normal and her blood pressure normal.