Also @nessa1970, these might help you with Type 1 and low carbing:
http://crick-tech-munch.blogspot.co.uk/2016/01/deconstructing-myths-surrounding-low.html
http://crick-tech-munch.blogspot.co.uk/2016/07/managing-glycaemic-variability-by.html
http://crick-tech-munch.blogspot.co.uk/2016/01/deconstructing-myths-surrounding-low.html
http://crick-tech-munch.blogspot.co.uk/2016/07/managing-glycaemic-variability-by.html