My great gran was similar again. 3-4 days on the bathroom floor (this was before I was 10). She had a stroke after a vigorous game of golf. She was well into her 70's and had been athletic all her life. Fortunately temperatures don't fall so low in my part of the world. Unable to move though, I am not sure whether she had any sores like those described. She ranted and raved at us, at anyone who would listen or was just nearby while she struggled through the partial paralysis. It was with good humour and a self deprecating wryness. A few years later, after a second more severe stroke and not long before she died in hospital (in as good care as could be given), after weeks of being unable to speak or communicate, her last (miraculously) legible words were "Who won the cricket?". The Ashes.