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Hoarse or harsh sound from nose or mouth that occurs when breathing is partially obstructed while sleeping.

Weak muscle tone.

An unpleasant feeling triggered by the perception of danger, real or imagined.

The compulsive urge to lie about matters big and small, regardless of the situation.

An abrupt change in mood or emotional state.

An unusually dry mouth, often caused by medication.

A dysfunction of a person's ways of thinking, perceiving situations, and relating to others.

Rapid or deep breathing.

A persistent difficulty discarding or parting with possessions because of a perceived need to save them.

Discomfort when breathing while lying down flat; common in people with some types of heart or lung conditions.

Mucus, thicker than normal due to illness or irritation, coughed up from the respiratory tract.

Involuntary twitching of voluntary muscles.

Muscle overactivity that occurs when communication between the brain and spinal cord is affected by injury or illness.

Temporary loss of vision and consciousness.

The destruction or deterioration of brain cells.

An unrealistic distrust of others or a feeling of being persecuted. Extreme degrees may be a sign of mental illness.

One or more painful sores on inner lips, gums, tongue, roof of the mouth, or throat that may interfere with eating, such as a canker sore.

Brain damage caused by multiple strokes.

Sudden episode of intense fear or anxiety and physical symptoms, based on a perceived threat rather than imminent danger.