I havent supplemented D in two years, my D is still 100. Sun and solarium in dark months. I get plenty of potassium from foods, maybe 3-6g per dayHigh potassium typically means potassium loss. Are you taking a lot of vitamin d??? For all the praise vitamin d gets if you take it a lot it will cause a loss in your kidneys. I tested HTMA for 3-4 years. This pattern also means you are a fast oxidizer. You need to eat more fats to balance this out, and up your potassium intake. Consider getting sun instead of taking vitamin d if you are.