Cutting yourself will do the same thing bitting your hand or pinching yoursefl will-----momentarily your mind will focus on the new pain and forget about your headache.

And after about 30 seconds you will have both a headache and a mess to clean up from your SI.

So if you can take some medication like Tylenol, Advil, or my favorite, Excedrin to help with your headache.

The pins and needles headache could be a Migraine Headache or a Tension Headache. Eitherway they are both painful.

If you have these often you should see a doctor to get treatment. I need to go myself one day soon.