Will Unum stop my benefits If I fail to apply for SSDI benefits? Can I terminate my claim voluntarily?

Attorney Stephen Jessup, thank you for responding. I saw a typo that said I have SS. It should have been M.S. However, my main question was, if I refuse to apply will they stop my benefits? If so, will they just stop them or stop them and require me to pay back? Can I terminate my claim voluntarily? I have discovered that if I go on SSDI and medicare that it could alter my ability to continue the treatment I am on. Other people in my treatment group have been greatly affected by medicare and not able to continue this type of infusion without huge out of pocket cost. This treatment has been my last resort and I will rebound badly with a good chance of only partial recovery. Thank you.