Hi rigbylu,
I had Cyber Knife radiation in April of 2018. Similar to GK, although it is fractionated, meaning I had five small sessions instead of one big session with GK. I had vertigo, dizziness, balance issues, tinnitus, and loss of hearing on my right side prior to radiation. Now that I am almost nine months post CK, some symptoms are better and some worse. The tinnitus is almost completely gone, dizziness and vertigo are becoming rare, I am almost completely deaf on the AN side, and my balance has gotten much worse over the last few months. I am considering vestibular therapy if things do not improve in the near future. Although my balance is an ongoing problem, I am grateful that I was a candidate for radiation due to the size of my tumor. At my age of 68, surgery would have been a difficult thing to recover from. I hope my experience helps. Please let me know how the vestibular therapy is going. Best of luck,
Gary