I am 32 and had my pacemaker implanted 6 weeks ago for mobitz II heartblock. I have had the settings changed 3x now. Since this last time i have been having a very distracting fluttering in my chest. I am so having occasional sharp chest pains. I was evaluated in the ER and they didnt seem concerned. Im wondering if anyone else has had similar experiences. I feel alone in all of this, and am looking for input from others that also have this condition. also did you find a cause for the issue? I have ventricular standstill and no apparent reason has been discovered for the block.