The companion brings together movement, sensation, balance, coordination, vision, communication, cognition, fatigue, sleep, pain, medication questions, functional change, falls, and preparation for neurology visits. Guided check-ins help the reader record what happened, when it happened, what was being done at the time, how long the change lasted, and how it affected daily function. This creates a more useful picture than isolated memories or a single symptom rating. It also gives the reader a dependable place to retain instructions, write down questions before appointments, and note the next steps established by the care team.