mike
I didn't have your exact symptoms but for about 3-4 weeks I had a mixture of sinus problems and on-and-off sore throat-headache. The doctor said the throat "didn't look too bad" but after 2 weeks gave me erythromiacin(sp ?). Whether that really helped or not I'm not sure, but over time it gradually went away. It may have been a nerve virus irritated by post nasal drip, but I'm just guessing. Putting cotton in my nose esp in cold weather helped cut down the throat irritation and massaging the nerves/muscles in the affected areas helped with the headaches.