<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doc, I feel like my throat is really tight and Ive been having palpitations lately. My heart rate is also constantly elevated and Ive noticed that my legs and arms are swelling up. Whats going on?  <response>: Based on your symptoms, it seems like you might be suffering from ischemic heart disease. Well need to do some tests to confirm the diagnosis, but its a condition where your heart doesnt get enough blood and oxygen due to narrowed arteries. This can cause heart palpitations, an increased heart rate, and even swollen legs and arms due to a buildup of lymphatic fluid. 