No, pre-diabetes is another term for chronic hyperinsulinemia. It's the point where your body is naturally producing high amounts of insulin to counter the elevated blood glucose caused by cells becoming more insulin resistant, but it's doing a good enough job that blood sugar readings look within the 'normal' range. If doctors routinely checked insulin levels, rather than blood glucose, it would be detected a lot sooner, and more interventions could take place, which might prevent full blown diabetes mellitis developing.