Below are the main rubriks (i.e strongest indications or symptoms) of Nat Mur in traditional homeopathic usage, not approved by the FDA.
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Sensation and pain in chest, as from tension.
Pain like a cutting cramp through left chest to scapula.
Pulse at times full and slow, at others weak and rapid; intermits every third beat.
Stitches in chest and sides, short breathed, especially during a long inspiration.
Breathing, anxious, oppressed; short on walking fast; better in open air and when exercising arms.
Attacks of suffocation.
Heart and pulse
The heart's pulsation shake the body; also with aching as if a pressure came from abdomen and compressed heart.
Palpitation anxious, with morning headache; when moving or exerting one's self; when lying on the left side; on going to sleep and on awaking.
Fluttering of heart, with a weak faint feeling, worse lying down.
Irregular intermission of beating of heart and of pulse; worse lying on left side.≡ more ...