Mild headache at base of skull, neck discomfort even when moving neck, slight sore throat, mild pain behind eyes, left ear feels like it is draining?

Ans. Sounds like your sinuses are involved. Try hot fluids to irrigate the see of this makes you feel better. There is also over the counter Benadryl (diphenhydramine) the will dry up the congestion see if that helps you. If no benefit time to see your doctor .