I have just gotten over a cold. now i have a pain behind my ear. sometimes it stretches up my head to the front. moving around eases.

Blocked eustachian: tube and sinus infection can give you these symptoms by increasing pressure in the middle ear and in the sinuses because of inflammation of the eusthacian tube and swelling of the nasal passages from cold blocks the drainage of the mucus. Take otc decongestant for few days see if it helps. If does not help see your doctor. I hope this helps.