Suspicions of MS may arise when a person experiences neurological symptoms that can widely vary. Typical symptoms include visual disturbances such as double vision or diminished vision in one eye, muscle weakness, balance problems, sensory disturbances, and sudden coordination difficulties. Symptoms can occur in episodes and their severity varies. If such symptoms appear, it is advisable to consult a doctor who can assess the need for further investigations, such as an MRI of the brain.