I'll never be a nurse now!

I had an experience today that made me wonder if I will ever make it through nursing school. We had an opportunity to see/do a dressing change on a patient with a PEG tube (percutaneous endoscopic gastrostomy aka a feeding tube). The patient is not responsive, so this was the perfect opportunity for us. Well...all of us except me. I had to leave the room because I almost passed out. How embarrassing. I don't know what happened because there was no blood or anything, just a hole with a tube in it. Hopefully repeated exposure to such situations will cause this phenomenon to subside. Otherwise, I might have to consider a career change.