I had a PDA closure in 1952. I am 72 now. about 10 yrs. ago echo showed mild regurgitation of the aortic and mitral valves. this month echo showed mild dilation of the left atrium. I am 72, my mother died whenshe had heart surgery at 76. I only see an Internist. she said ignore all this. should I see a cardiologist? I am diabetic, have high blood pressure & hypothyroidism.