I have a pacemaker and I was sitting on the side of my bed and the upper part of my arm pit started jumping is that my pacemaker of what? I checked my blood pressure and pulse and it read 130 ova 111 and the pulse read 70?

I have a pacemaker and I was sitting on the side of my bed and the upper part of my arm pit started jumping is that my pacemaker or what? I checked my blood pressure and pulse and it read 130 ova 111 and the pulse read 70?