Chest – heart
The heart and the circulatory system are profoundly affected in a number of ways in Arsenicum. There are frequent and violent palpitations felt throughout the body which cannot be tolerated by the patient; he feels that he can hear the pulsations while lying. Palpitations worse lying down and after midnight. Severe paroxysms of palpitations during endocarditis. After stool, tremulous weakness of the heart and palpitations necessitating lying down.
Arsenicum is famous for its arrhythmias, and they are accompanied by anguish which is worse at night, lying down, going upstairs, and at two to three AM. The pulse is rapid, weak and irregular. Weak heart with thread-like, feeble pulse; patient is pale, weak and sweaty. Pain in the heart, extending to the neck, with a fainting feeling.
Angina pectoris; sudden tightness above heart; agonising praecordial pain; breathing difficult, fainting spells; least motion makes him lose his breath; sits bent forward with head thrown back.
Serious heart conditions such as: endocarditis, pericarditis, angina pectoris, pericardial effusion, hydropericardium with great irritability etc. Heart conditions can arise from suppressed eruptions, rheumatism or rheumatic fever.
Back
Pain across the scapula extending to the arms. Drawing pain in scapulae with a feeling of weakness; has to lie down but gets no relief. Weakness felt in the entire back. Pain in the region of kidneys when inspiring or sneezing. Burning pain in sacral region. Stiffness of the back that starts from coccyx and extends upwards. Feels as if warm air is streaming up the spine.
Extremities
In the extremities we see convulsions with rigidity and pain. Twitchings, distortions, uneasiness, weakness and heaviness. Paralytic weakness at a regular hour every day, with trembling. Paralysis of lower limbs with atrophy.
Contractions in knees and elbows. Cramps in calves. Retraction of flexors of fingers. Toes and fingers are continually flexed. Hands and feet are constantly agitated; he has to move about or move the feet to get relief.
Swellings of feet with arthritic inflammation of the joints of the most malignant nature. Psoriatic arthritis after suppressed psoriasis. Tearing in long bones, better on motion, worse lying on the affected side. Stiffness of joints.
Arthritic pains in shoulders and hips. Peripheral neuritis. The nails are subject to discolouration – dirty yellowish, violet, bluish-black. The colours change easily.
Furrows and cracks of the nails.