Headache, nausea, vomiting, constipation, anorexia. Ca: Mild hypercalcemia, more severe hypercalcemia associated w/ confusion, delirium, stupor & coma. Vit D: Weakness, somnolence, dry mouth, muscle pain, bone pain, metallic taste, polyuria, polydipsia, wt loss, nocturia & mild acidosis.