Respiration irregular, difficult, performed by
frequent deep sighs. Sudden sensation as if
the heart stood still, with great anxiety.
Extremely slow pulse.

The chief interest in this drug centres about its action on the heart ; vigorous
systolic contractions, which become very irregular ; the pulse becomes slow,
arterioles are contracted and arterial tension increased. General weakness and
faintness, < rising. Cold, pale, and covered with
profuse sweat. Restlessness. The symptoms, especially those of the
circulation, < suddenly rising.

Great anxiety and fear of death. General apprehension, with depressed
spirits, especially < music. Inability to think. Forgetfulness.

Sudden cracking noises in the head, starting one up from the midday nap.
Confusion and pain, as if the head were full. Vertigo ; worse on rising from
a seat, with weakness of the limbs.
On stooping a feeling as if something fell forward
in the head. Head is inclined to fall backward
while sitting and walking, as if the muscles were too weak
to hold it up.

Blue rings about the eyes. Pupils dilated. Insensible. Loss of vision and
many symptoms associated with anæmia of the retina and
optic nerve.

Hissing like boiling water. Sudden crashing noises, deep in the head.

Pale, sickly expression ; a bluish color, especially about the eyes and mouth.

Tendency to saliva. Tongue pale, sometimes coated white. Tongue blue. Read more http://www.homoeopathynow.com/homoeo-articles/218-digitalis-purpurea