Here I go again...beating the same ole' drum. Maybe it's cause I've lived with pain for so many years, but my first thought is always to make sure you have enough pain meds. to get you by, and maybe even something stronger than usual on stand-by should you need it. Hopefully your dr. will help you with this!
I can understand your excitement about going to see grad. school but please don't push yourself. It's better to delay it a while than getting any pain flaring up worse than necessary.
Here's praying that the revision will do what's needed, and that you'll finally get the proper pain relief you've been waiting for!!

Fiona