If you hit your thumb hard with a hammer, wouldn't you expect it to be sore for a few weeks ? The thumb has a lot of nerves just like your scalp. They take a long time to heal and settle down.

The tingling is in the skin. There are not nerves in the brain that can tingle. Headache comes from nerves in the blood vessels.

You also need to understand and accept that anxiety makes any nerve sensation 10 times worse. You can ignore that tingling. As you do, it will become less noticeable.

I have horrible tinnitus. If I ignore it, it fades. If something draws my attention to it, it is like a high pitched bell ringing loud. By just mentioning tinnitus, my tinnitus has magnified in intensity. In ten minutes, it will have faded away if I ignore it.

Choose to ignore the tingling.