If nausea is accompanied by severe pain in the right side there may be inflammation of the liver; if preceded by severe pain in the head it may be sympathetic. If the nausea is habitual we may fear organic derangement of the stomach; if food and drink are vomited as soon as swallowed we may apprehend inflammation.

Habitual vomiting in the morning accompanied with cramps sometimes indicates gravel.

The stomach sympathises with almost every organ in the body and nausea not unfrequently exists in connection with derangement of the stomach, kidneys, brain or chest