Sudden lowering of readings

Hi Bob,

Metformin is very unlikely to be the culprit because, on its own, it isn't able to reduce your BS level by more than 1 to 1.5mmol, so can't cause a hypo unless your BS was already low. Sounds like either you ate a lot fewer carbs than your body is used to, or perhaps have had more exercise than usual, or a combination of these?

Chocolate isn't the best thing to bring BS back up quickly from a hypo because chocolate contains fat which slows down absorbtion of the sugar. Your best bet is a sugary drink, just a couple of teaspoons of sugar dissolved in water, or a glass of fruit juice concentrate or full-strength coke. I usually carry with me a packet of Lucozade or dextrose tablets in case of a hypo.

Dennis is quite right
There's a danger of overcorrecting low BG. Actually, for a T2, at 3.3, all you really need to do is sit quietly and wait for it to come back up, unless you've taken a medication recently, which can knock it down.