I'm 59 and was diagnosed with HCM with LVOT obstruction in September when a heart murmur was detected during an appointment for a laceration. I had assumed my lightheadedness was all related to chronic sinusitis and allergies. I had some upper back (between my shoulder blades) and chest soreness which I attributed to posture/lack of upper body strength. I did notice that yard work made me much more tired this summer than the summer before. I exercised quite a bit prior to my diagnosis and I have an appointment with the Sports Cardiology Clinic and Cardiophysiologist coming up to go over my stress Echo with me and provide me with guidance on exercise going forward. I started Cardizem which has improved my BP tremendously. I was on Lisinopril prior to the diagnosis, but it wasn't working. A few weeks after the Cardizem start my chest soreness/tightness and pain between shoulder blades is mostly absent. I still get lightheaded from time to time. I'm not in quite as much of a panic now regarding the diagnosis as I was initially. Still a little nerve wracking as my symptoms were so gradual I just thought that's what it felt like to be me. I was really surprised by the diagnosis. Going through genetic testing now.