Hello. I'm writing a short. In it, a conversation takes place between a patient and a doctor at the hospital. What is a fatal disease that I can give to the character? I mean she is suffering from a painful disease and she knows she will die soon. I want it to be something which is kind of scary what it does to body and I also want to describe that in detail. The doctor knows death is inevitable and is thinking about helping the patient with euthanasia. They have a conversation about the meaning of life and death as they ponder whether or not euthanasia is a wise choice. The patient also has difficulty speaking. How can I express that? Can I say she "mumbles"?