Excessive Potassium for Arrhythmia:
I have had Arrhythmia issues for years, never knowing what would bring it on. I recently went on a high fat diet that included avocados and nut and seed butters all high in potassium. My arrhythmia came back strong so it would come on whenever I went to bed. I tried all the things mentioned here and they didn't help. Then I found out about Hyperkalemia, top much potassium in the blood. I looked up the potassium content of the foods I was eating and cut out all the high potassium ones. My arrhythmia didn't appear that evening and hasn't since. It's only been about a week but I think that was what was causing mine.