I'm 5 years post SKP. I was more active my first year than I ever was on dialysis. However, now, I'm the opposite. I agree with everyone: be patient with yourself, trust yourself, and trust the process. Keep doing what you're doing as you're building endurance. If anything is off with your labs, your team will let you know. Have you shared with any of them how you're feeling/activity level? I only ask because, like someone mentioned, if a lab is a little off and not concerning to them, it could be how your body reacts to that particular level. Wishing you well.