Brain blood vessels; Stroke What are the symptoms? FAST: F: for facial weakness or droop, especially on one side A: for arm or leg weakness, tingling, or numbness, especially on one side S: for slurred speech T: for time. Call 911 immediately. HOWEVER, Vertigo (extreme dizziness) can also be a sign of a brain attack !! Symptoms of a TIA and stroke are similar. TIA's last seconds to a couple of minutes. TIAs should not be ignored; they are a warning = call 911 immediately.