Could a infected nerve in your tooth cause heart palpitations. i will be getting a root canal sometime this week.

No not directly: But increased physical or emotional stress (e.g. Pain) can bring them out.

Usually not.: Although bacteria can enter your blood stream and effect your heart, this is really very rare. You do need to clear up the infection and an antibiotic may be suitable for you. Contact your dentist and tell her/him your concerns and what you are experiencing.

Anxiety: Anxiety symptoms are not a sign of illness, they are the mind's ability to produce the "flight or fight" response which gives rise to many physiological changes include heart palpitations, nausea, sob, insomnia, dry mouth, aphasia, tremor and sweating. Depending on the cause of your anxiety symptoms, your health care provider can provide you with treatment options.