Thanks for asking the query,
Headache, pain in the eyes and right side of the face can be due to neurological disorders, infection in the tooth on the affected side radiating its pain in the surrounding tissues, presence of any dental cyst
or osseous lesion.
I would suggest you to visit to an Oral and Maxillofacial surgeon and get a thorough examination once.
Other then this there can be other causes like migrane
, medication overdose, neuralgic defects , to rule out the other causes get a examination done by the Physician.
Hope this helps out.