Mum has a compulsion to tap everything she passes. She asks "why am I doing this?" Even though it troubles her she does not seem able not to do it. It's always things on her right side. Sometimes I try to avoid her tapping doors of other care home residents by walking beside her and holding her arm as I would if we were out for a walk. It is getting worse, when it started a few months back it was just the odd bit of furniture, but now it is everything. Panelled doors get special attention, each panel gets tapped. Has anyone experienced this with their loved one, and does anybody have suggestions.