I donated 3 days ago, and my hand fell asleep!
By far the most painful part was my left hand falling asleep. I have one IV in my arm and another in my hand, and my hand was tingling/asleep as soon as I woke up, so they took the hand IV out. It got worse by the evening, and my fingers started twitching. Then they took out the arm IV and put it in the other side, and all feeling returned to my hand within 2 days. The IV fluid in my arm must have been "leaking" somehow.
Otherwise I've felt pretty good! I thought there would be more deep, internal pain, but it's just been my hand and the incisions that bother me. I can't believe how easy it is to donate a kidney (as long as you keep up on your meds).
My infant recipient is doing well :)