Sometimes these malfunctions will be noticeable, sometimes, they won’t.
Take, for instance, twitching muscles.
It could just be your watch, bracelet or other fashion accessories attached to your wrist, perHealthline.

Detergents and certain types of fabrics may also trigger these allergies (viaHealthline).
This skin condition is so widespread that up to 15 million Americans have it (viaCleveland Clinic).
So don’t be surprised if you contact your doctor and this is what they diagnose you with.

Other health conditions that cause itchy skin include scabies and lichen planus, according to Healthline.
It can also affect the scalp, nails mouth and nether regions.