no, it is the muscular movement of digestive system which forces food to move further in digestive tract. It may cause pain when these paristaltic movements are very quick due to action of certain drugs, and pathogen.
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Peristalsis is an involuntary rhythmic contraction of an elongated muscle tissue to propel something 'forward'. Even though it's involuntary, meaning you cannot control it yourself, there are certain reflexes that aide persitalsis.
An 'illness of peristalsis' could be neurological in nature. If you believe you have it, go to a doctor.
An ileus is a condition (not an illness) which is basically a lack of peristalsis in the gastrointestinal tract.