Clogged arteries can lead to serious health issues like heart attacks. Early signs to watch for include chest pain, shortness of breath, weakness or numbness on one side of the body, slurred speech, and vision loss, particularly due to blocked carotid arteries. Leg pain, cold feet, and delayed healing of injuries in the feet can indicate peripheral artery blockages. Heart palpitations and persistent nausea may also signal circulation problems. If you experience any of these symptoms, it’s important to consult a doctor for early diagnosis and treatment to prevent more serious conditions.