Hi, you don't say whether you are type 1 or 2, and whether on insulin, or not.
As a type 2 (not on meds) I trust my liver to push glucose into the bloodstream and bring my level back up.
I'm still going to be craving carbs with a vengeance, and feel absolutely dreadful, but it will sort itself out.
And by the time I even notice it is happening, my body will have already stepped in to correct things.
In which case, if I stuff quick release carbs, my BG will rise sharply and too high, my poor pancreas will flog itself to produce insulin, which causes my BG to drop, and I risk another hypo. It is like a lift, shooting from the bottom to the top floors, then falling back down again.
In my experience (remember, type 2, no meds) it is MUCH better to eat a small amount of carbs, a good chunk of protein, and some fat. Nuts. A 9bar. Followed by a good big meal like a fry up, a steak, a good rich meal with veg.
The result is a quick, sharp, small rise from the carbs, followed by a lovely, steady curve as the meal is digested.
No dreadful seesaw jangly after effects.