I'm a RNA (Registered Nurse's Aide) and I'm in school for a Bachelor's of Science in Nursing to be an RN.
I told my Mom when I was 2 that I wanted to be a nurse and it always stuck. I used to fix up my dolls & teddy bears
I love everything medical and plan to work as an RN in the ER. I enjoy learning about body processes and Anatomy is pretty much my favourite thing.
I work Med/Surg for clinicals 2 12 hour shifts per week and I absolutely love it. There's nothing else I would want to do.
As a bonus, the pay in Canada is fantastic (though I don't think it's that great in the States, but it's not bad that's for sure.) It's also very flexible and easy for people raising kids.
Good luck!!!

Be prepared for a TON of work, though. You won't have a life while you're in school. I take my books everywhere.
GO NURSES & NURSLINGS!