I can relate. Most of the people that know me very well know my reasons why I'm striving so hard to be a nurse and support me 110%. Of course, there are always the few that say "Ewww, I couldn't stand the blood, puke, poop, etc. etc." I have also gotten comments (as I'm sure many other nursing students have gotten) about "why not just be a doctor, or a PA?" Well, because I want to be a nurse!
Bottom line is that I'm VERY confident in choosing nursing as my major, and I love it! That's all I need to take all those negative comments and let them go in one ear and out the other.
Personally, I don't think bodily fluids, night shifts, whatever are all that bad. No one likes to clean up the stuff, but I always remember that the person that likes it least of all is the patient. I have had so many patients cry of humiliation as I'm cleaning them up that it really doesn't bother me anymore. I'm more concerned about the patient than anything else. And I have found that night shifts can be pretty well spoken for, since most parents find this shift works better for their families, daycare, etc. There are many nurses out there that love nights and want to work nights all the time. Some floors actually need more nurses on days because of this!