The symptoms of jaw pain
, headache, blurred and double vision, sensitivity or burning sensation and
ringing in the ear can be due to temporal arteritis. The other possibility is brain injury
due to the blow in this area. This is diagnosed by high ESR, high C-reactive protein, MRI and biopsy of the inflamed artery. Oral corticosteroids are usually prescribed as the first line of treatment. Do discuss this with your doctor and get this investigated. Take care!