UPDATE: Mixed news. The seizures and headaches I've been experiencing since around the time of my last radiation treatment do not appear to be a result of that treatment. The prior treatment appears to have been successful and proceeding normally. However, coincidentally, a fourth tumor has appeared and is in an area which much better explains the symptoms that appearered. The doctor has already begun the preauthorization process for another cyberknife treatment. I'll raise my steroids a bit to help relieve the current symptoms until we can get the new treatment planned and completed. Though I can still walk, my new wheelchair has been a huge help. God bless Dr. Ghafoori, Dr. Vaillant, the Cyberknife and the whole team!