Hi Jen! I, too, recommend that you go with your heart. If your heart is in nursing, go for it! The field needs people who truly care and really want to be there.
I think everyone has at least one thing that grosses them out - in terms of bodily functions, etc. I had a pt with bile duct cancer who vomited bile. It stunk and it made me gag - I literally could not control my gag reflex. So I got help immediately. I made sure the pt didn't see me "reacting". I wouldn't want to hurt her feelings.
I have learned that there is something that we all feel a little (or a lot) queasy about. And I have learned that it is OK to ask for help. Just be willing to help other students/staff when they need it as well.
If you have any questions or need support or whatever, feel free to PM me.