One kidney or two?

So last night me and my husband were discussing someone we know who very much needs a kidney. Apparently a lot of people have been tested but no one has matched so far. This man is young, has a young child and is a firefighter. For some reason I kept thinking wow...that really sucks. He can't be a fireman anymore because of his condition and has been put on a donor list. These lists can take years and years.
So I'm sitting there thinking ya know, if I was a match I would totally donate my kidney. And I was really surprised that I meant it. If I could help one person survive and have a better life I would totally donate my kidney. I mean I've been through surgeries before so I know how much it sucks but what's one day of pain for years of  healthy life for another person? I'm still shocked when I sit and think about it. I mean I don't know if I would even be a match for him but just knowing that if I was I would do this and not even think twice about it just shocks me. I was thinking about it last night and this morning and was like yeah, I would. It never once occurred to me that I would change my mind. And I am such a coward when it comes to giving blood but here I am thinking of donating an organ! When did this happen? When did I stop being so selfish? I mean I did ask my husband what the effects of losing a kidney would be on me? And that sounded awful, worrying about myself when someone else could possibly die without the kidney. But I am a wife and a mother so I have to think about those things. But apparently you would never know it was gone.
So yeah, I'm surprised at myself. And I wouldn't hesitate to go get tested. I may actually ask them if they want me to. The only thing that would stop me would be if my husband didn't want me to. I mean it would affect him to so I would want his input. None of this will probably happen but just knowing that if someone ever needed a kidney that I do have the balls to give them one makes me happy for some reason. Just thought I'd share that. LOL