Is she looking for a group for other people with chronic pain? I'd think that could possibly be helpful for you. I think your T really cares and might feel she's not sure how to help you with the struggles with pain.
Also, you may want to try seeing if there are any Tai Chi or Qi Gong classes around you (they're somewhat similar)--I've been taking Qi Gong, and in my last class, the instructor said a couple of the exercises she was showing us were good for sciatica. Though I forget if you're getting physical therapy or seeing a chiropractor--if that's the case, they may not want you doing outside exercises.