Three concussions in past twelve months and persistent headaches since the last one (two months ago), and painful ear pressure when i shake my head?

Concussion syndrome: You have post concussion syndrome which should get better with time. However, there are more serious things that can happen with head trauma such as bleeding in the head. You need to see a doctor for a neurologic exam and possibly x-rays.

See a specialist: Elavil (amitriptyline) is probably too anticholinergic a medicine for you to take. Figure out why you are having recurrent concussions and avoid a 4th. Make sure your neck is OK as this may be contributing to your cephalgia. Don't shake your head. Have somebody look in your ear. There are two head injury specialist in DC and three in Baltimore at present. Good luck.

See a specialist: MRI brain is needed with special brainstem cuts. Effects of concussions are cumulative and your symptoms may mean several diagnoses. Sinus eval, balance eval, ear eval, jaw eval, and cause of your concussions. Head over neck injuries often result in headaches but cause needs work up by doc familiar with brain trauma PMR vs Neurologist.