Q: I am 70 years old, my BP is 125/67 and I feel tired all the time (no energy at all). However, the cardiologist said nothing is wrong. What could it be?
A: Keep in mind that poor sleeping is one of the most common causes of fatigue. Heart disease and cancer are the two leading causes of death. One of the warning symptoms of cancer is fatigue. You should make any appointment with your primary care doctor for an evaluation.