Thanks for your interest, Ethan.My cancer/radiotherapy was some 5 years ago. My balance was not a problem, I thought, but my walking was bad. My consultant said that the difficult walking would fix itself. Meantime I fell a few times and saw the doc . I then traveled down a road of exercise for balance. It is a long story, ongoing,. I recently moved from a house to a retirement complex with long corridors. I can walk confidently down the halsl but not outside. My daughter suggests that my brain is distracted outside and not inside. She is right I think but medical people do not listen. According to the internet, there is not much you can do. Cheers