Found abstract vaccine can cause slow heartbeat but so far no information on pauses I had;;6 seconds..Atenelol could be causing slow heartbeat also. Dr. says vaccine cannot cause a pause. Maybe vaccine could stress the heart. Never near fainted before so wondering if I need a pacemaker . I do have the slow ..fast syndrome and sick sinus node. Want to be smart as to what to do but don't want to do something I don't have to. Maybe should be smart as "preventive".
Bothers me more is not known.