I don't personally feel that being so tired really impairs your thought process. That's a good question. Lung transplants are actually the most difficult organ to take care of, because it is the only organ exposed to the environment. Thus, infections are higher compared to other organs. Therefore, life expectancy for lung transplants is relatively shorter than with the other organs.
Rehabilitation following lung transplant is probably more lengthy than with other organs.
Most patients are quite debilitated and are taking a lot of steroids, both of which make their muscles very weak. The best thing is to let your family know of your intention, and also to make note of it on your driver's license. I am currently on the waiting list for a double lung transplant at Methodist Hospital in Indianapolis. ET Transplant centers do share information if you wish to double-list your waiting time. ET Zach's surgery was done about six months ago.