HEADACHE!

Tension headaches are the most common type of headaches  among adults. They are commonly referred to as stress headaches.
A tension headache may appear periodically ("episodic," less than 15 days per month) or daily ("chronic," more than 15 days per month). An episodic tension headache may be described as a mild to moderate constant band-like pain, tightness, or pressure around the forehead or back of the head and neck.
These headaches may last from 30 minutes to several days. Episodic tension headaches usually begin gradually, and often occur in the middle of the day.
The "severity" of a tension headache increases significantly with its frequency. Chronic tension headaches come and go over a prolonged period of time. The pain is usually throbbing and affects the front, top, or sides of the head. Although the pain may vary in intensity throughout the day, the pain is almost always present. Chronic tension headaches do not affect vision, balance, or strength.
Tension headaches usually don't keep a person from performing daily tasks.