What are cluster headaches?

What are cluster headaches?

Cluster headaches are very severe headaches, more so even than migraines. Healthcare providers consider both types of headaches primary headaches, rather than secondary headaches. The difference:

• Primary headaches: Start because of a response from the part of the brain that communicates pain. A primary headache is its own health challenge, not part of a larger issue.
• Secondary headaches: Start because of another health condition. Several things can cause these headaches, including ear infections, nasal congestion and dehydration.

Cluster headaches can disrupt your life for weeks or even months at a time. They tend to follow a pattern, often showing up at the same time each day. They can also wake you up an hour or two after going to bed. These nighttime headaches may feel more severe than those during the day.