Question about heart rate?

Heart rate is extremely subjective, as we are all different. That being said, I have two insights. First you said you had your heart rate tested. Who was testing? I ask because later you ask if you should see a doctor. If your pulse wasn't taken by a professional it may have been misread. The second point is, if you are ever uncertain about your health, you should see a doctor. They don't mind, it is there job to make sure you feel healthy. You heart rate when exercising was high, but not dangerously so. Even still, exercise a little slower while you build up your aerobic stamina.