Symptoms of Clogged Arteries / Blocked Arteries: The atherosclerosis symptoms depend on the affected artery. Signs and symptoms of blocked artery / circulatory insufficiency usually first appear in the legs. Usually there is cold and numbness in the legs and cramps and pain in the feet, even after doing some light work.When coronary arteries engage patients experience acute pain.igns and symptoms of blocked artery / circulatory insufficiency usually first appear in the legs. Usually there is cold and numbness in the legs and cramps and pain in the feet, even after doing some light work. When coronary arteries engage patients experience acute pain.