Carotid artery disease may result in no symptoms. The build-up of the plaques can go unnoticed and may result in a TIA. If you experience a TIA, your chances of experiencing a stroke increase by tenfold . The symptoms of a TIA are temporary (may last for a few minutes to a few hours), and they include any of the following: Difficulty swallowing Difficulty talking Numbness, tingling or weakness on one side of the face or body, or in one arm or leg Sudden dizziness or confusion Sudden lack of coordination, balance and difficulty walking Sudden loss of, or blurred vision Sudden severe headache It is crucial that you seek emergency help to receive immediate treatment in order to prevent the progression to a stroke.