We adopted our cat from a rescue home in October 2005. On November 21 2005 she sufferred a fit which caused us great distress. A visit to the vet confirmed no obvious issues other than a mild liver infection for which medication was provided. She suffered on further fit on 6 June 2006 and then another on 22 November 2006. Again the vet could provide no explanation, other than it was a rare occurrance. She then sufferred a fourth fit on 21 November 2007. Is anyone able to provide any explanation as to why these fits occur regulalry every 12 months to the day, as my vet is unable to provide any answers? Is it just coincidence or could there be other reasons?