<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing palpitations, sharp chest pain, leg cramps or spasms, and chest tightness. What could be the reason behind all these symptoms?  <response>: It seems like you might be suffering from coronary atherosclerosis. It is a condition where cholesterol builds up in the arteries that supply blood to the heart causing blockages and leading to chest pain, palpitations and tightness. Leg cramps may also be a symptom due to decreased blood flow to the legs. We need to further investigate to confirm the diagnosis. 