I would think if he told you to continue exercising, he meant your cardio routine, but I would advise you to call and clarify!. I was told to continue to do my exercising - which I told the doctor was walking, elliptical, biking. I don't run so I didn't ask about that. Weight lifting would benefit me since I have developed osteoporosis due to being on aromatase inhibitors (breast cancer), but I don't do it because I have been advised not to lift anything heavy. I have the same measurement as you. Started as a 3.9, found during an echo, but CT measurement was bigger. That made me nervous, but they say it is still considered stable. I have had two separate occurrences of breast cancer over the last 6 years. I'm not on BP meds because my blood pressure is good, 110/60-70 range. So I am just watched. Due to my other health concerns this is sometimes overlooked, but its always in the back of my mind, and I see my cardiologist every 6 months and he is briefed on all other health issues I have.