May I ask how you feel now? Are you the same as you were before or even better now that your valve is functioning properly?
I feel exactly the same as before. My mitral regurgitation didn't give me any issues or perceptible symptoms until a couple of months before the surgery. So I wasn't coming back from a decline, really.
It's interesting to see the ranges of recovery experiences here on the forum. I was in excellent shape before my surgery, but the operation really knocked me down for a while, mostly in terms of energy level. For the first couple of weeks I didn't even have the energy to stand up while taking a shower; I used a shower seat. I was going for walks right away, of course, starting with ten minutes twice a day and working my way up to half an hour twice a day. Everything came back to normal, but it was a gradual process.
So when I read accounts of people who are back at work in a few weeks and doing all their normal activities quickly, I marvel at them and wonder what the difference was -- type of surgery? Duration on bypass machine? Or maybe it's just that every human body is different.