A. If you are having memory problems and trouble focusing on tasks, finding words or managing daily activities, you are not alone. Many people notice these changes while receiving chemotherapy. But most find that within a year of finishing treatment, these symptoms have either greatly improved or disappeared altogether. Researchers are still uncertain about the exact causes of chemobrain. But a number of conditions that may lead to these symptoms can be treated effectively: low blood cell counts, depression, anxiety and fatigue among them. Tell your doctor if you’re having any of the symptoms of chemobrain. Sometimes, simply changing a prescription can make a real difference in how you feel, because some medications can also make you less alert.