Hi, Thanks for writing in. Brain cancer treated with surgery and chemotherapy might cause the above listed symptoms present in your wife. What happens is that the brain is a complicated structure and when treating the cancer area, other areas are also affected. The nerve fibers are interconnected and in some places they are very closely placed such that the normal areas are affected. Having tremors in different parts are due to side effects of treatment. Some remote areas in brain might be getting stimulated leading to tremors. These will take time to resolve and she might also require medication that helps in nerve growth. This has to be discussed with your neurologist and oncologist. She must eat a healthy and nutritious diet. Please do not worry.