I have had a dry persistent cough when I try to talk for 4 months now. Been to doctor three times. Ruled out asthma, copd, changed blood pressure mediction (Hyzaar), and now tyring a medication for Gurd. Still the same. Feel great. Negative x ray. I have had a heart beat that skips occasionally they say. Had it for years. I feel great at 73. Lots of energy. So can this cough be associated with anything to do with the heart? Do I need to go to an ear, nose, throat specialist?