First of all no one can make this decision for you, you've got to really think about what YOU want in your career. If you are already having these thoughts then maybe see if you can defer the start of the program and do some shadowing of PTs and see if it actually interests you like you say it does when you just see PTs, also use that time to really decide what you want in your life (in the end taking a little bit of time off is better than just spending money to spend money because you don't know what you want to do). Also you're gonna need a bachelors anyways to get in to PT school and if you're already on your way towards one I would just stick with that, a bonus with nursing programs is that they will knock out if not all but most of your PT pre-recs that would be nice if you ended up going in the PT direction