I have to second Lit Love on the caffeine. Good catch Lit Love! Having your diet as clean and nutrient dense as possible is so important.
The recommendation I read on steroid doseage was a low 10mg 3 times per day for ten days. So not too bad. I took them a little bit longer because I had a good response and tapered slowly.
I am so glad you are getting in the pool! Many of us rave about the water. As with any exercise, just start low and go slow, even more so with CRPS. You want non-painful stimuli for those nerves. It will help. Just keep plugging away. My mile has been a slooow methodical progression.
Good luck at your appointment!