Hello, can someone tell me if I should be concerned? I have been having these short, sharp headaches that feel cold and inside of my head. It feels like someone is poking me with a freezing thumbtack from the inside of my head. The pain is not extreme, it's pretty mild. Sometimes it feels like there is cold water running down the inside of my head. Should I be concerned? I do have an anxiety disorder, primarily health anxiety. I had an MRI on my head a few months ago and was cleared.