What would you call that feeling of something crawling on the body

Morgellons is a controversial and poorly understood condition in which unusual thread-like fibers appear under the skin.

The patient may feel like something is crawling, biting, or stinging all over.

• Is there a non-medical term for such a feeling of something crawling on the body/under the skin.
• An adjective or a noun ?

From Wikipedia...

Formication is the medical term for a sensation that exactly resembles that of small insects crawling on (or under) the skin.

Less "medically-minded" speakers are likely to say [it feels like] my skin is crawling [with ants], which is effectively the same thing (formic acid in ant stings derives from Latin formica "ant").

 crawling, biting, or stinging all over.

I would call it a (hallucinated) sensation or simply tactile sensitivity.

(vocabulary.com/TFD)

• Peppercorns will give you the sensation of a million tiny pinpricks on your tongue.