I suffered thrush for years before diagnosis - GP put it down to my hysterectomy!!
Since I've started to reduce my BG levels, after diagnosis as Type 2 in May, I get through half as much Canestan cream as I used to
QED - high BG's = thrush!
Canestan can be expensive, so in between applications I also use Suducrem (often used for nappy rash!) to relieve the itching.