@davej That may be the case for some people and for some technicians, but I had no such experience....that I can recall now six years later. In my memory bank, it is often the uncomfortable or weird positioning that can be the issue that I recall years later.

@davej only once did that happen to me but very short. When i had a pacemaker put in the night after they needed to check the placement of the device and wires. The tech pushed pretty hard but I was also sore from the surgery. Thats the only time It happen to me and ive had hundreds of them to my Heart.