Unfortunately, someone could have carotid artery disease and show absolutely no symptoms.
One of the warning signs of carotid arterial disease, is the occurrence of something called a “mini-stroke” (or transient ischemic attack – TIA). A TIA is a temporary episode where a person experiences numbness or weakness in the arm, leg or face on one side of the body, loss of vision in one or both eyes, difficulty understanding what someone else is saying, slurred speech, difficulty talking, a loss of coordination, ringing in the ears, dizziness or confusion and/or trouble swallowing. This episode can last just a few minutes, or can continue for up to 24 hours.
If you have ever experienced any of the symptoms related to TIA, it is highly recommended that you get a vascular screening as soon as possible to see if you have any blockage in your carotid artery. Carotid artery blockage will only worsen with time, leading to a stroke, which can be fatal or that could leave you disabled for life.