"In addition I am sick, my muscles are contracting and I am at a loss. I see my doctor again in two days. What should I do? Is this far too much of a reduction?"
From what you described, it sounds like a big reduction and you are experiencing withdrawal symptoms. Is it too much?...well your doc doesn't seem to think so. Just be honest with your doc when you see him next.
"Its been two days now and I am starting to feel the pain again from my accident ( it will never go away, too much damage)."
That's very common when we stop pain meds. Its called rebound pain. It should subside over time. You just have to be patient. If you decide to stay at this dose and just deal with the withdrawals, check out the link to the Thomas Recipe. It will help you deal with some of the symptoms.
http://www.medhelp.org/health_pages/Addiction/Thomas-Recipe-Re-Posted/show/16?cid=66
Best of luck to you.