Anyone ever had high levels of potassium? I had my bloods took last week becasue i didn't feel well and i have to get my potassium levels re tested again on friday. I have been following the palao diet for a year and i am worrying that high levels of kale/spinach, coconut water, fresh orange and soluble painkillers have done this. I keep feeling sick and have right sided back ache. Really worried my kidneys are damaged.