2. Blurry Vision
Both prediabetes and full blown diabetes can negatively impact your vision. When blood sugar levels swing wildly from high to low, it can cause fluid to leak into the lens of your eye. That happens because your body has gone into overdrive to pull as much water as possible from cells in order to flush out excess sugar. The effect on your eyes is that they swell and change shape, eventually preventing them from focusing properly.
There are a lot of other potential causes for blurry vision, but if you can link yours with any of the other symptoms on our list, prediabetes could be the culprit.