To be honest, they sound like they are pushing you a little to hard. There does not seem to be enough communication between therapists, doctors, nurses, assistants... and patients. I can understand pushing a little to get through short gains and goals 1 day at a time, but having that amount of swelling on the first day sounds like it would be more of a setback. I would try talking with the members of your rehabilitation team to make sure they realize that you can't handle all of what they are asking you to do without serious setbacks.

I know it was difficult for you to get into the program, and only got in because of a last minute cancellation. If they continue to push you beyond your limits and don't want to listen to your needs, are you able to go someplace else that may go at a pace you are more comfortable with? A place that will listen to you. It's your body. Nobody knows it better than you. If you feel you are being pushed to hard, make sure they know it and slow down to your pace.