sorry you are feeling down. all the information i read prior to donating led me to believe that I would be off from work for 4-6 weeks and no lifting >10 lbs for at least 6-8 weeks. not sure what information you received. I also find that some surgical patients kind of think, oh that won't happen to me. maybe it is denial or protective mechanism that we use. I mean who would want to sign up if they told you, you would be out of commission for weeks! I guess that is why they make it sound so easy, go home after a day, back to work in a couple of weeks, you only need one kidney,no cost to you (sounds really easy until you do it). also, everyone is individual. Some donors have complications like bleeding, clots, nausea, fatigue etc. So while we hope it is smooth sailing everyone's experience is different and you have to plan. I kind of compare if to child birth. you will find those women who say, labor.. no problem I did it without drugs, then went right back to my routine. and some women who feel like they were hit by a mack truck.
now that you have experienced a little set back see if you can enlist some friends or family to help you out. You did just have major surgery so I would think they would be delighted to help. make a list of things that would be helpful like meals, walking your dogs, taking down the trash, laundry, shopping or errands. Maybe set up two weeks and see how that goes. During that time, take time for yourself, relax on the couch, walk around the block a few times to start then increase slowly, no heavy lifting (your just had a major organ removed), eat small frequent meals, drink plenty of fluids and basically take time off to heal from surgery.
Keep in touch with your transplant center and if things aren't improving make an appt to see them. you should be followed one month, 6 months, 1 year and 2 years for labs and blood pressure. also be in touch with your primary care so you can set up a visit there if needed.
Hope things start to improve and keep us posted.
Sherri