I completely understand what you are saying because I have been there and done that. It was not scary for me....I knew that it was something that had to be done and I went at it full force. The tests were not that bad....6 minute walk, x-rays, CT scans, blood work, PFT's, psych eval, and a few other things. I think that the most annoying one was the heart cath. I had to be put at least partially under for that and they went through the groin so there was a little pain there afterward. I also had tests that other might not have because I had double lung and liver.
Before the transplants I could hardly stand at the sink to do the dishes or stand at the stove to cook my family dinner (I am married and have a son). I had a hard time taking a shower more than 3 times a week or holding my son to feed him his bottle. I was on O2 all the time, on IV's frequently, and did TONS of breathing treatments every day. I was also coughing up about 3 or more cups of junk a day and blood on occasion. It really sucked and I know how you feel.
I had the double lung and liver transplant on January 31, 2007 and I was taking my son to the park only like 3 months after (I walked there and then walked home). I went on a hot air balloon ride that May. It was amazing to be able to do that stuff! In June I ran into problems with my colon and had to have that removed but it was not due to the transplants....I had c-diff. Since everything with that is over, I feel like 1,000% better than I ever felt. I even went to NYC last week with a group of CFers and walked probably a total of 7 miles that day and was not tired a single bit!
Of course I had some pain after the transplant...everyone does. But if I had to do it all again (the evaluations, the pain, and everything else), I would. If you have any questions, just ask!