Teen DS (nearly 16) has been ill off and on for nearly a fortnight. His main symptom initially was sudden severe nausea, although he hasn't actually been sick. He's also had intermittent headaches and fluey symptoms, no energy, and is a bit dizzy and bunged up today. He's missed several days of school and spent most of half term (last week) sleeping. The GP is sending him for blood tests and we're wondering about migraine, as there's a strong family history, but given the fluey symptoms, I'm really hoping it's just a virus that will pass. Lateral flow tests have been negative. GP gave him Buccastem for the nausea yesterday and it helped a bit, but made his headache worse.