I am a 58 yr old male. I feel great and am very active. Recently I had a precautionary stress test (I had some chest tightness but no other symtoms) that came back "abnormal". I then had a heart cath which and, though my arteries were clear, I was told my ejection fraction was below normal i.e. 42-45 and was put on a beta blocker. I then had an echo cardiogram and was told all looked normal including an ejection fraction of 60. I was taken off the beta blocker, proclaimed normal and told to return in a year for a follow up echo. That was five days ago. Last night, while at rest I noticed my left arm, tricep area, pulsating. It lasted a few minutes. Today, also at rest, it did the same and I measured 102 bpm. Again it lasted no more than 5-10 minutes and no other symptoms. The only possible factor that I could come up with was caffeine as I had been drinking starbuck's coffee all morning, maybe 8 cups. But, when it happened last night I had 1 beer and only 2-3 cups of coffee and this occured an hour or more after I quit drinking.
I am confused and a bit concerned. Any thoughts?
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