Symptoms
* "An urge to move, usually due to uncomfortable sensations that occur primarily in the legs."
The sensations are unusual and unlike other common sensations, and those with RLS have a hard time describing them. People use words such as: uncomfortable, electrical, creeping, painful, itching, pins and needles, pulling, creepy-crawly, ants inside the legs, and many others. The sensation and the urge can occur in any body part; the most cited location is legs, followed by arms. Some people have little or no sensation, yet still have a strong urge to move.
* "Motor restlessness, expressed as activity, that relieves the urge to move."
Movement will usually bring immediate – however often temporary – relief. Walking is most common; however, doing stretches, yoga, biking, or other physical activity may relieve the symptoms. Constant and fast up-and-down movement of the leg, coined “sewing machine legs” by at least one RLS sufferer, is often done to keep the sensations at bay without having to walk. Sometimes a specific type of movement will help a person more than another.
* "Worsening of symptoms by relaxation."
Any type of inactivity involving sitting or lying – reading a book, a plane ride, watching TV or a movie, taking a nap - can trigger the sensations and urge to move. This depends on several factors: the severity of the person’s RLS, the degree of restfulness, the duration of the inactivity, etc.
* "Variability over the course of the day-night cycle, with symptoms worse in the evening and early in the night."
While some people only experience RLS at bedtime and others experience it all day and all night, all sufferers notice that the RLS is worst in the evening and the least noticeable sometime in the early to mid morning.