I think the late Canadian pianist Glenn Gould also probably suffered this condition. One of the symptoms quoted in the original posting was hypersensitivity to sights, sounds , touch etc. It was reported of Gould that he could hear the difference between recording decks in the studio - identifying which tracks were recorded using which deck whilst cutting his albums - much to the bafflement and amusement of the production crew. He also was able to handle nearly boiling water and so appeared to have a compensatory lack of sensitivity in his touch. Obsessive behaviour? Just listen to him play Bach ....
Dáithí