Hi Sean,
You have received many great responses, so I don't know how much I have to offer other than this. I am 42, with three children (6, 3, 1). Like you, I have maintained a relative healthy lifestyle and like to workout. Then boom, diagnosed with a heart murmur...which led to aortic stenosis...then all of a sudden starting getting the symptoms (shortness of breath; dizziness; etc.)...then meet with cardiologist and hear that I need surgery...what? open heart surgery? NO, not me...then the thought of my kids literally brought me to my knees with tears (common reaction)...first, asked for God's mercy...next I started researching and using some resources that I have in the medical field...my good buddy, an orthopedic surgeon, immediate response was, you need to get it done FOR your kids...we are very fortunate, modern day medicine is amazing and it is only getting better!! Keep monitoring and do not hold anything back from your doctors...Even when I started getting the initial symptoms, I wanted to blow off, but decided to put my man pride aside and openly communicated with my doctors...I understand how difficult the mental aspect can be as I still find myself feeling the anxieties...I am changing and saving my life on 01/18/12...your feelings of anxiety are real, so please continue to use these forums as positive reinforcement...you will come to find that valve replacement is a relative common procedure that most can and will benefit from...I know you weren't raised with any organized religion, but my pastor told me that when I start feeling the anxieties or wake up in the middle of the night and can't go back to sleep, to close my eyes and simply start repeating..."Dear God, please have mercy on me"... focus on the things that you can control (healthy eating; no smoking; etc) and in addition to your own research, allow your doctors and this site to arm you with the information that will ease your anxieties...Great things to come for you in 2012!!
Happy New Year,
SB42