Severe headache, neck pain, intermittent cough · Dx?

: A 32-year-old Chinese woman sought care from our family medicine clinic because she had a headache, neck pain, and an intermittent cough that had produced white sputum for 7 days. She described the headache as severe and pressure-like, and said that it had progressively worsened over the previous 3 weeks, coinciding with her first trip outside of China to the United States. The patient indicated that she also had occasional vomiting, dizziness, a low-grade fever, chills, night sweats, and increasing fatigue.