there are a lot of over laping areas between the PT and DO worlds. you might find the OMT a little basic depending on where you go, and I dont realy know if the viceral manual therapy is of much value to you. if your thinking about PM&R a DO education is a plus. ethier way as a 3rd year I would welcome you to our world as i think PTs are a great asset to our ranks.
the bigger question is do you want to be a dr
steve