Their eyes shine with disquiet, enough so that the doctor can easily perceive their anxiety concerning their health.
They have very much sympathy for the pain of others, and they are averse to hearing of another’s suffering. They lack the courage to face such situations. They lose heart very easily. They are subject to an anxious restlessness, a feeling that they cannot stay in one place for a moment, that they must constantly be on the go.
The main keynote of this remedy, in my opinion, is a feeling of foreboding, that something terrible is going to happen immediately. It is a sudden, intense fear that something bad is imminent, and they feel that they have to do something about it. They get excited, pace up and down, and finally, feeling as if they are suffocating, rush to a window to take some deep breaths. This syndrome is different from the Phosphorus anxiety "that something bad will happen." In Phosphorus, the time of the untoward occurrence is undefined; similarly, the impending anxiety-provoking event is vague – they know not exactly what it will be.
In epilepsy a similar condition is seen: twenty times (more or less) every day they imagine that the attack is coming "now," although their rational faculties remind them they have a convulsion only once a week or so. A similar foreboding applies to their heart; they fear that they may have a heart attack at any moment. There is a strong sensation as if the precordial area of the chest (overlying the heart) is swollen. In the books this is described as "precordial anxiety, with oppression of the chest, a sensation of swelling of the front of the chest, craving for fresh air, sensation of constriction in the throat and the heart, tremors." In consequence of the above observations, Amyl nitrosum should be included in the Repertory with those remedies having anxiety about health, with a sense as if something will take place imminently.
To be justified in prescribing Amyl nitrosum the above symptomatology must appear in conjunction with: congestion, a sensation of heat; intolerance of heat, sun or very warm rooms; fullness of the head, throbbing, fluttering of the heart with the least excitement, flushings, etc. One should always strive to look beyond isolated symptoms to the general picture, the general tendencies of the remedy, matching that with the pathology in question.