Pseudo hyperglycemia?

For the past few months I have been reducing my carb intake (in general) and testing much more often and have had better a1c results and less fluctuation (I also switched from Lantus to Levemir and from Humalog to Novolog recently and I think these changes helped this transition, too).

Since I am eating less carbs I have of course been taking less rapid acting to cover them – since I know my carb:insulin pretty well, I can cover extras pretty reliably, too.

So earlier I had a cookie and bolused accordingly. A little later I started getting what felt like typical hyperglycemic feelings (for me, this fuzzy/anxious sensation). I test, figuring the cookies packed more punch than I thought and surprise, my BS is 117. This has happened before when I have eaten more carbs at a time than normal.
Fwiw, I don’t *usually* feel the effects of high blood sugar until about 160 mg/dL.

So the question – do you think there is such a thing as pseudo hyperglycemic symptoms?