Ket, you had a great deal of aggressive treatment; your spatial awareness problems might very well be residual side effects of that treatment. It's tempting to believe every twinge and physical issue from now on is cancer, but most likely it's not; just the effects of aging, or some other malady. Definitely report symptoms to your doctor, but try to keep a calm, positive outlook; worrying is a choice we make, and it doesn't solve a darned thing. Good luck -PJH