Dada’s note: Dennis’s chest X-rays came back inconclusive, with “questionable nodular opacity in the ventral thorax” and mild heart enlargement,while the ultrasound showed evidence of a chordae tendineae rupture.  So basically, we still don’t really know exactly why he’s been coughing; it could even be down to seasonal allergies from weeds sprouting after the one or two days when it rained a few weeks ago.  The cardiologist does think that the medication is helping to relieve the pressure on Dennis’s heart, though.  His next recheck will be in a few months, at which time he may be starting on another medication, depending on how things look then.