A 37-year-old woman comes with 3 months of headaches. The headaches now occur daily and are relieved by aspirin. Her pulse is 76, respiratory rate 12, blood pressure 158/95 mmHg. Serum sodium: 140 mEq/L, chloride: 100 mEq/L, potassium: 2.6 mEq/L (low), bicarbonate: 34 mEq/L, blood urea nitrogen (BUN): 9 mg/dL. Diagnosis?
A) Migraine with aura
B) Cluster headache
C) Tension-type headache
D) Pseudotumor cerebri