On June 5, 2012 I posted asking if anyone had experienced the same symptoms that I had following the Gamma Knife procedure... I received one response and appreciate her willingness to share. Just wanted you all to know that although I have been experiencing some "negative" side effects or symptoms such as additional loss of hearing, balance issues and some dizziness... good news is that the tumor is responding to the radiation. Due to the symptoms my neurosurgeon ordered an MRI and it was confirmed that there was some swelling within the tumor and definite signs that the tumor is responding to the radiation. Unfortunately, it has affected my hearing. They are trying a round of steroids but they tell me that it is not likely that the hearing will improve, however, it is felt that the balance/dizziness is temporary. I feel very much encouraged by this news and wanted to share it with all of you who are having post GK symptoms! Good News... the tumor is responding!!!! That is what I am choosing to focus on - the balance issues are not debilitating... and something that I can work on. I have the hearing in my right ear! Hope someone is encouraged by this!