Q. A 19-year-old woman presents to the clinic with complaints of fatigue, muscle weakness, and muscle cramps. She also reports experiencing mild polyuria. On physical examination, her blood pressure is found to be slightly low. Laboratory tests reveal metabolic alkalosis, severe hypokalemia, hypercalcemia, and hypocalciuria, as well as hypomagnesemia and high renin levels. What is the most likely diagnosis for this condition?