my uncle is 52, he had a mild stroke in the right occipital lobe two years ago which affected his left side. he made a full recovery! he is mildly retarded due to being born blue. he was on vacation last week, and twice he urinated on himself without knowing, and without feeling the urge to urinate. at the same type he began to get shaky on his life side only. His heart rate increased following this, but i feel that was due more to nerves. what could be causing this uncontrollable urination?