Hi all,

I had an aortic valve replacement/aneurysm repair in 1999.  Prior to
my AVR I was heavily into aerobics, but since the surgery my exercise
routine has consisted of a daily walk lasting between an hour and an
hour and half. I don't "power walk," but I don't just plod along
either.  I never get out of breath and always cool down.

However,  I've noticed recently that instead of leaving me
invigorated, this walk now almost always leaves me fatigued and in
need of a nap! I drink a ton of water throughout the day so I don't
think it could be dehydration. My worst sin is that I overdo the
carbs, but blood glucose tests have always been normal.

It just doesn't make sense, especially since I've been walking for so
many years. BP is fine (most of the time not over 120/70) and my heart
rate is usually in the low to mid-60s.  In fact, my resting heart rate
is often 56-59. Last year's echo was fine and I have my next one in
about a month. I take coumadin and Tegretol.

Any opinions on whether or not this could be heart related? Your
thoughts would be appreciated.

Cheers!