<unk>  is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause.<unk>  may be transient or chronic, and may have any of dozens of possible underlying causes.<unk> s are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs. The most familiar kind of<unk>  is the sensation known as "pins and needles" after having a limb "fall asleep". A less well-known and uncommon<unk>  is formication, the sensation of insects crawling on the skin.
Paresthesia
Dysuria
Oscillopsia
Ataxia
Carotidynia
Dysosmia
Photophobia
Gastroparesis