ia Foundation. ???There are a variety of diseases and conditions in which ataxia is a symptom, including MS [multiple sclerosis], stroke, head trauma, brain tumors, severe viral infections and immune system problems.???QUIZ: How Healthy Do You Feel?But not all causes of clumsiness are so serious.Mindfulness Over MatterSo if a medical cause???or, say, being intoxicated???isn???t to blame for trippi