My father while speaking or sitting is coughing slightly and he is blowing cheeks and exhaling air sometimes, I'm not understanding what it is, however ecg and 2d echo are normal as told by a Practo doctor, but I'm not understanding why he's doing it he's doing it from the time he went To Mumbai for a wedding, I have been seeing it for a week, he's doing it like this in the pics, also it's not heavy breathing but I'm not able to understand please help