As a thought, diabetics have issues already w dehydration, vaping can cause dehydration. Which on turn can screw w your numbers, t2 diabetics have insulin resistance, so there for lack of fluids can make this a larger issue. I have to hydrate like crazy stress of quitting smoking can cause #'s to rise as well. Try testing before you Vape such as a fasting look at blood sample, Vape wait a 1/2- 1 hour test again watch the sample, as you go higher your sample is darker, as you Vape the same occurs, if your not drinking. If you drink water in between the levels should be normal Back to the old well taught lesson to most diabetics, drinking fluids will bring down your sugars, that's why when we go high we get thirsty, our blood needs the fluids. I'm not a Dr just a diabetic of 29 yrs. off my soap box.