Restless Chest Syndrome (RCS) and Other Variants of the Restless Legs Syndrome (RLS)

General features of a restless syndrome:

(1) abnormal sensations or discomfort in a bodily region that worsen at night or with inactivity

(2) insomnia

(3) either idiopathic or associated with an underlying condition (iron deficiency, chronic kidney disease, drugs, Parkinson's disease, etc)

(4) improvement with physical or mental activity

(5) exclusion of an alternative explanation

In these conditions abnormal sensations in the legs are typically absent.