Ileen - is there any coorelation between Hashimoto's and elevated pulse? I have read that it 'could' be a related but haven't been able to find anything definative. I just had my bloodwork done and my antibodies were off the charts (like really high) and I have been having problems with my HR when working out. Cardiologists wants me on beta blockers but I am wondering if it is more thyroid related. I put in a call to my Thyroid doctor this afternoon but it is a holiday weekend and probably won't hear back from him until next week. I thought maybe you could provide some insight. Thanks!!