Central Nervous System
Dizziness, Convulsions, Dim Vision / Epilepsy, Insomnia, Facial Twitches / Voices in head, Hearing difficulty / Mental Disability, Ringing in ears / Muscle paralysis, Muscle twitches / Multiple Sclerosis, Difficulty Walking / Speech Disorders, Chronic Headaches / Unexplained leg jerks / Failure of muscle coordination / Noises or sounds in head / Narrowing of field of vision / Numbness of arms and legs Tremors of hands, feet, lips / Tingling of fingers, toes, lips, or nose / Loss of ability to perform hand movement