Back head pain - is it sinusitis?

Hello from 2-3 months, I am having pain at back of head on right side mostly at one particular spot but sometimes towards entire right side back of head, around temple, neck, nose and right eye. The head pain often worsens and then becomes mild on it's own. Got x ray for neck which doesnt have anything particular. Sometime back, also got a bit restless and had some breathing issues. Nothing on ecg, chest x-ray. Doctor said the headache is anxiety related and has given Prothiaden 25mg for a month. Does the diagnosis appear to be moving correctly? I have a history of sinusitus. Could the back head pain be related to that as sometimes feel the right ear as full (no pain though)? If so how should I proceed? any home remedies for this condition