I'm 17 years old and I get sinus infections several times a year, especially when I'm home in ultra-humid Michigan. I have a pretty bad one right now that was acute onset and is accompanied by the usual symptoms - fullness in the face and forehead, congestion, coughing up mucus - but I also have a terrible headache that gets worse when I cough. This is the first time I've had a headache this bad with a sinus infection and it's making me dizzy and weak. I can barely walk to the bathroom without feeling like my head is spinning. I have an appointment with the doctor this afternoon and I'm just curious what questions I should ask to get to the bottom of this problem... I'm already planning to ask about hypothyroidism because of another health issue, but what else should I ask about?