Would an aneurysm "sentinel bleed" or rupture produce a constant headache or an off and on headache?

After vomiting too hard I got a localized pain on the back left lower part of my head. The first time was pretty intense and it lasted for a few seconds. Now I just have a mild, nagging ache that is localized to the back of my head and it seems to only appear if I tilt my head back a certain way, and as soon as I straighten it up it goes away. Has anyone experienced something like this?