I have taken 4000 IU for two months or so. My diet probably contains enough Vitamin D otherwise. Anyway. I started to have heart palpitations / arrythmia. Stop

I have taken 4000 IU for two months or so. My diet probably contains enough Vitamin D otherwise. Anyway. I started to have heart palpitations / arrythmia. Stopped taking Vitamine D for other reasons (basically I forgot to buy more), heart issues went away.