A sense of dissatisfaction

I feel a lot of dissatisfaction right now as I sit and study for this next Respiratory exam. Another test, another hurdle jumped over. That's all I feel. Even when I do well on these exams, I don't get any greater sense of purpose or happiness with what I am doing. I know this is all supposed to mean something down the line, but I can't help feeling really pathetic right now in this phase of my life. This phase of study, eat, sleep, study, repeat as necessary. Even on Tuesdays during Intro to Clinical Medicine, the one day a week that we get to interview patients, the one day that is supposed to bring more perspective to why we study this material ad-nauseam, to why our heads our in the books non-stop, even then I don't feel any better. Actually, I end up feeling even shittier on those days. I've asked more and more these days, "Why am I in school?" and find myself now attending class for only the bare minimum classes that mandate my attendance. Yes, I have definitely considered switching careers. And no, I haven't ruled any of those exit strategies out at this point (exit strategies that include getting an MBA or even a Journalism degree). I'm going to give myself till the end of the next academic year to assess this all, I'm going to put myself through 3rd-year rotations just to make sure that I'm not making a bad move by having a career change. My hope is that third year will prove my discontent wrong and that I will want to go through with medicine. But if I still don't like medicine after the end of my third year, well then... time to activate Plan B. I look forward to challenging the upcoming future with this ultimatum.