Lisa,
If I remember correctly, in previous posts you had expressed some ambivalence and fear about donating a kidney. Believe me, I can relate. I, too, am a sibling who was very ambivalent and reluctant to undergo an elective surgery and particularly because I have two brothers who show signs of kidney disease. One brother is the one I donated to and the other also has microscopic hematuria and is under the care of a nephrologist. I finally decided to go ahead with the surgery and both my brother and I are doing well 3 1/2 years later. One of the residuals that I am left with is some of the anxiety that seemed to rear its head with all the testing and the what ifs. So you may want to think about if you do pass the medical tests and go through with the surgery will you be able to put all the anxiety by the wayside or will you constantly be thinking about the what ifs. I have been seeing a social worker which has helped me immensely in dealing with nervousness, resentment and anxiety. I was always a little nervous about health in general so with the surgery it was just magnified. I think the transplant team's approach is that you will have the surgery, go back to your routine and never look back. I think for most that is true, but for some with underlying anxiety and nervousness that might not be the case. May not be a reason not to donate but you have to have the support in play to help you through some of the post surgical emotional issues if it does persist.
Good luck as you travel down the donation road.
Sherri