Tension headache or brain aneurysm?

Tension Headache: Brain aneurysms almost never cause symptoms until they leak, or outright rupture. When this occurs, it commonly is "the worse headache" of a person's life. Chronic headaches are almost never from an aneurysm. With the advent of MRI angiography, it is much easier to screen for aneurysms. Consult with your local physician.

Headache common : Tension headaches are significantly more common than brain aneurysms and if you have multiple episodes of periodic headaches, they are much more likely. Aneurysms usually present after they have ruptured and most patients describe it as the worst headache of their life which is unlike any other headache they have ever had.