Diagnosing tension headaches

Signs and symptoms of a tension-type headache include:
Dull, aching head pain
Sensation of tightness or pressure across the forehead or on the sides and back of the head
Tenderness in the scalp, neck and shoulder muscles
Tension-type headaches are divided into two main categories — episodic and chronic.
https://www.mayoclinic.org/diseases-conditions/tension-headache/symptoms-causes/syc-20353977