I hope this is useful to you. Pain, like heat and cold, is an everyday experience, which is beneficial as a protective mechanism. It is therefore not surprising
that patients complain of normal pain. In addition there are some very common pains which are not due to disease-an example is Asher's precordial catch. In this conditon there is a severe stabbing chest pain relieved after a moment of great agony by deep inspiration. Patients with conditions of this type need only be told the nature of pain, what it is not (heart trouble) and that most people have it.