Question: I am a 69 year old female. In the past month I have had the Holter monitor, followed by an echocardiagram and tread mill stress test. The cardiologist seems puzzled because I don't have a history of hypertension and no known MI history. For almost 30 years my EKGs have shown either a variant of a normal rhythm or in the past decade listed as either probably normal and more lately abnormal. Doctors have always said it is nothing to worry about. However, a few weeks ago I experienced some mild pressure in my chest and simultaneous tingling in my left arm--while resting, which precipitated the latest series of test. Today the cardiologist says I have poor r wave progression. What do you think is going on? Last week he wanted me to monitor my BP over time. On the last two visits it was 120/58 and 120/80, respectively. Today, he now wants to do a nuclear scan. I was just about to begin a deep water water aerobics class. Should I?