[kittycatra]

Last night after noogling, I felt pain on the left side of my chest, (where the heart is). Then I got to thinking about the organ directly under where we pump, our heart. Could there be a possibility that we're affecting our hearts to any degree? Since we pump on that side, are we forcing the heart to pump blood harder? Or is it possible to swell the heart? Maybe someone with a similar experience (pain on left side of chest after pumping) or with medical knowledge knows something?
Then again, if it was unsafe, why would the doctors that recommend brava not think of this right?