A head ache is mostly a diffuse, gentle to moderate pain in your head that is usually represented as feeling sort of a tight band around your head.

A head ache (tension-type headache) is that the most common type of headache, and nevertheless its causes are not well-understood.

There are many different types of headaches.

Migraines

If you are feeling throbbing that begins on one aspect and causes nausea or sound/light sensitivity, you will have a headache.

Sinus Headaches

If you feel a steady pain in the area behind your face that gets worse if you bend forward -- and if you also have nasal congestion -- you may have a sinus headache.

Tension Headaches

If you are feeling a boring, steady pain that looks like a band adjustment around your head, you will have a head ache.