"Oh, no, my dear, of course not!" Dr. Fischer shook his head emphatically. "For you, the time will pass like nothing. You will be unconscious the entire time, while we tend the process and make any adjustments needed. You will simply go to sleep on one day, then wake up on another, as a pony. The process to reverse the change will work much the same way, only this time we'll have a template to go off of, so it will be much smoother. We would be able to return you to your current form in about a week or so."