12 months ago my husband was diagnose with type 1 diabetes. He had a blood test a month prior to this and his g.p advised him that it was normal but a month later he was rushed into hospital with high sugar and keytone readings and advised he would now need to take insulin. He did this for 3 months but then his sugar readings returned to normal and for 7 months he took nothing.... This weekend all of a sudden his sugar readings are sky high and he's back on the insulin. I am confused !!!! is this normal ??