Everyone is different. I had my surgery just over 2 years ago. Worked my way up, slowly, to being active again but have major problems doing only certain things. Steps kill me and my legs have always been the strongest part of me. Even when I'm not tired and I go up steps I lose my balance frequently and get extremely winded. Keep in mind that I have been walking 3 flights of steps when I go to and from work, or if I go out for lunch during the day (I used to work on the 3rd floor, got laid off today) for almost a year now and get winded like I haven't done it in years! I'm in my 40's and never had a problem with this before surgery. Doctors said I have nothing wrong and shouldn't be having this problem, nice answer huh! So, enough of my run on, just wanted to say, basically, that everyone is different and while we can make comparisons, that's all they are, everyone's situation is a unique one but it's nice to be able to see who else has same/similar problems so we don't feel all alone out there! Hang in!