Fell while kneeling on bed and hit head on wall. i've had a bad tension headache for 72 hrs. taken hydro because pain. no other symptoms. see a dr?

Depends.: If your headache continues attended by other symptoms such as blurred vision, nausea and vomiting, you may need to see a doctor. Depending on how hard you hit the wall , lost consciousness, had nausea ,dizziness and the headache, you might have suffered a mild concussion.

If concerned: If you are having concerning symptoms, and now, on own, using a narcotic (hydro?, meaning hydrocodone?), contact your doctor and discuss your symptoms. Cannot be more precise based upon information at this time.