And just to be my typical self, I will disagree with CaninePro (old habits die hard and I am procrastinating studying for a physio exam) and say that if it ISN'T a logical decision, don't do it. If you can't live happily with the debts you will incur and the wages you will earn, do something else. If you can't hack being away from an SO and your SO isn't going to move with you, don't bother. If spending a full day in classes and a full evening studying isn't your cup of tea, and you aren't willing to embrace that lifestyle for at least 4 years, don't do it.
Having said that, there are tons of options of how, when, and where you use a DVM degree. I learn of more options every day, ones I had never even imagined. You do have to be pretty dedicated to get there, but I believe nagging doubts are VERY normal, even AFTER admissions. There are days (when faced with colic duties the night before a major exam) where I STILL have MAJOR doubts, and I love vet school...and colic rounds, and even the challenge of the exams. If you look back over the past year's posts, alot of us first years had doubts before, during, and after both the application and acceptance processes. I do not consider myself passionate about being a vet. I love what I am learning, but I feel the field is so varied that I don't have an idealized image of what a 'vet' is, or even what I want to do as a vet. I have several years to figure it out, though, and I will enjoy all the opportunities to explore.