What an interesting thread!
I'm a 19 y/o nursing student, and it's interesting, actually - I never really intended to go into anything medically related, even though I was always the one handing out medicine, dishing out the bandaids, and now that I'm in college, friends knock on my door asking what medicine they should take, and I'm like, "Guys, I'm not an RN quite yet, you're a few years early!!!" Ah well, no one's gotten sick from my Advil recommendations, so that's got to be a good sign, right?

(when I was little, I always thought that I'd be majoring in violin performance at some elite music school somewhere...boy, was I wrong!!). The thing that made the difference was that I was also diagnosed with Type 1 diabetes at the age of 6, at a blood glucose way past 800 - definitely not the best of times. At the time, I was like, "I want absolutely nothing to do with this at all,", and the nurses would be like, "You need to be doing this, this, and...yadda, yadda, yadda," and I'm like, "Right, that's nice, lucky you, you don't have to do all this crap..." Such a bitter child I was, eh?
Then, I was in a bad car accident when I was 8 (drunk driver), so then, of course, it was all the nurses who kept me going through the surgery and the physical therapy afterwards for a dislocated hip, not to mention taking care of the rest of my family...
(And back to the diabetes team...) As the years went by, I guess it's more than safe to say that the diabetes team grew on me, lol! Although I didn't realize it at the time, I was interested in the whole "planning" process of diabetes, like putting the insulin together with what blood glucose, what time for what type of insulin, and all that...I'd always make suggestions to the doctor about what dose she should give me (this is like, when I was 9 or 10), and she'd look at me, look at the logbook, and then look at me like, "Why do I feel like I'm talking to another endocrinologist, and I don't see anybody else with a white coat in here...she's reading my mind, I swear!!" One of the diabetes educators on the team...well, I have to laugh because when I was 8, I definitely didn't appreciate the fact that she would tell you the flat-out truth even when you don't really want to hear it ("Your A1C is 10.0%...yeah, this kinda sucks, what happened?"), but can also give words of encouragement to get you back on track - now, it's one of the things that at 19 I most appreciate about her. My doctor eventually switched me to an NP that she had just hired to help her out on the team, which I was pretty upset about, but to make matters worse (or so I thought at the time), she says, "The new NP has diabetes as well, so I think you will get along really well!" And I'm like, "OMG, she is going to be the most strict, uptight person in the world, and I am going to be so freaking screwed..." Turns out, the new NP happens to be one of the coolest people I've met in my lifetime - who also manages to tell me everything I'd somehow missed in the first 8 years that I had diabetes, like "This isn't your fault," "You aren't a bad person because your BG was 491, it just means the PLAN is out of whack," and "You're normal, and yes, you can be cool and have diabetes...think, be like your cool NP and everything will be just fine!"

Needless to say, the first adult T1 diabetic I ever met left quite the lifelong impression on me.
So why do I want to become a nurse? Because I want to help other kids with diabetes like myself. In a way, I just wanted to return the gift that I got from my diabetes team of just being there for me, when I never really expected them to put up with me for a good 13 years. No, I have to admit, I'm not in it for the rush that one gets after saving a person's life in the ER (been in the ER as a patient, done that, never want to go back again, although obviously I'd do it if I had to - see above explanation about car wreck), but as to make people feel like their life is worth living because they think they stand a chance, and to know that as someone living with diabetes, the experiences and knowledge that I have might be able to help someone live a happier life - THAT is what I'm in it for.
Whew! Sorry so long, guess I needed to get that out!!