If a non diabetic sugar reads 423, 562, HI on a glucose meter what does that mean Hi I am a 26 year old woman and for a while I have been sweating profusely, craving sweets, thirsty and exhausted. A close friend of mine noticed that all of this and decided to check my sugar it was HI, 562, 351, and 40 whats this mean? I told this to a doctor and they cant find anything? or when they test it is normal!