Pika,
Sorry to hear about this. I've been wondering when this would happen considering where you ride. As they told me when I shattered my knee - ignore the pain, rehabilitate every day and in a year you will be better. Doesn't sound like you have any really serious injuries though. Soft tissue damage hurts, but heals quickly. You may be doing much better in just a month or two. You're so fit it will heal fast. Stitches are nothing. If they can sew ya back up its better than internal injuries. physical therapy is for people who can't motivate themselves to work through the pain. My doctor refused to send me to pysical therapy. He told me I was an animal and he wanted me to take it a little easier on the training. You're likely in the same category.
Jim