I have a headache and when i move my headache there's a popping in my left ear whilst the right ear aches what might this be?

Eustacian Tube Dysfu: It appears as if you may have Eustacian Tube Dysfunction. This disorder involves pain in the ear that results from a build up of fluid behind the ear. This fluid can be a result of a sinus infection or allergies. Frequently, can be treated with allergy medication. The fluid may, even with treatment, may take 4-6 weeks to resolve.