Hello, I just had a strange pain in my head. It began as a sharp pain at the base of my skull and migrated quickly around my entire head causing me to feel a little unbalanced, to the point where I said Whoa out loud. This entire experience lasted only about two seconds. But the same thing happened to me yesterday when I was out walking. I have pretty constant tension in my neck and have for years, so maybe it s due to that. I m just a little worried because I ve never really experienced anything like this before.