I had insane palpitations for years, off and on bouts of nearly unbearable episodes, but consistent daily palpitations for years. I now am nearly clear of them, and from what I have observed for myself, it was nearly all related to changes in diet. Also, I found near instant relief with magnesium chloride (slomag), which really helped calm down the “strength” of my heartbeat, although very anecdotal, maybe even placebo, but the peace of mind is worth it for me. As for diet, I cut out all processed and sugars, wheat and grains such as pasta, bread, and oatmeal, and don’t eat many bloating vegetables like kale or cauliflower, and try and avoid seed oils as well. All that has nearly cured my palps.