My cat has been diagnosed with a serious heart disease - hypertrophic cardiomyopathy - this is when one of the valves isn't closing property and obstructing the outflow of the heart. He is a young cat - only 5 years and is due to see a specialist cardiologist. I wonder if anyone on this forum has had a cat diagnosed with this condition, whether you have any information or advice. He is currently on medication and is ok thus far although I understand longevity isn't good for this condition. Any insight gratefully received.