 According to a 2005 profile in the book Madcap by biographer and journalist Tim Willis , Barrett , who had reverted to using his original name of Roger , continued to live in his late mother 's semi @-@ detached home in Cambridge , and had returned to painting , creating large abstract canvases . He was also said to have been an avid gardener and his main point of contact with the outside world was his sister , Rosemary , who lived nearby . He was reclusive , and his physical health declined , as he suffered from stomach ulcers and type 2 diabetes . 
