I received 3 heart stents in 2010. My cardiologist stated that I had a mild myocardial infRction, but my heart was strong. I did have some severe blockages. The 4th stent was not placed, he said he thought we could treat it with medication. I do not smoke, drink, exercise moderately, but am pverweight. I am a 66 year old male and am very active. I have recently started having mild headaches occasionally, and Tire very easily. Could my stents be partially blocked? I am taking 181 mg aspirin, one 5 mg enalapril, one 25 mg metoprolol, one 40 mg Socorro daily.