healthyartist
Although, most people here are more likely to be wasting sodium, which causes thirst and urinary frequency too. (Just want to make sure that I don't lead a newby AFer astray).
Off the top of my head:
Low Sodium: thirst, salt craving, urinary frequency, dizzy spells upon standing, fatigue
Low Potassium: thirst, urinary frequency, muscle cramps, joint pain from muscle cramps, tingling in extremities, fatigue, toes curling under
Low magnesium: muscle cramps, fatigue, weakness
Low calcium: muscle cramps, fatigue, weak brittle bones/nails
Too much calcium: muscle cramps
What else?