That could Very well be why you get the BG rise Gerri. I don’t know if you get DP or how yours works. Just because we all have Diabetes doesn’t mean that we are all wired the same. In fact, we are not. Don is right when he said, I guess everyone’s mileage varies with caffeine.
Not that it matters but when I drink a cup of coffee or tea, I only have half a cup of coffee(tea) and the other half is water(with milk), even when I order it at a Restaurant. Yes, I get funny looks.
But I’ve tested myself every which way. Different days I’d wake up with a Good FBG. I tried just drinking coffee, not drinking coffee, coffee with milk, coffee without milk, a yogurt, no yogurt, exercising, not exercising, just sitting there relaxing, sitting there watching tv, etc. No matter what I did, my sugars just started climbing each time as on cue.
Thus I agree with my Endo. It’s the DP. I call it delayed DP since as I mentioned, my sugar rise happens about a 1/2 hour after I wake up. So taking my Insulin right away works Good with or without coffee, to cut down the DP. I do not get shaky with coffee or without coffee unless I had a low, of course.
Great that taking Insulin right after you test works for your situation also Gerri.