Once I was informed about how advanced my condition became knowing surgery was imminent, I was told to take it easy, stay hydrated, and stay aware of what my body was telling me. There is always a danger of falling when one is light headed so I started to use my walking sticks when I moved about outside especially since we live on a farm so walk on uneven ground. My medications were also slightly adjusted. There was not much I could do other than that. After my surgery, the light headedness went away. It is a long road but one worth going on. I wish you the best and hope we can stay in touch. I would love to talk to you in person if you would like to do that. FYI I had my surgery at Cleveland Clinic. Although my initial evaluation was done at Mayo at Rochester, it was more convenient to move my care to Cleveland Clinic since my husband's family is from there and along with lots of friends. We live in Southern Indiana so that makes it much closer than Mayo. Cleveland Clinic is first rate as is Mayo. I would only choose one of those places for treatment.
Best of luck.