Hi Debbie, I know you're worried and I hope tonight is ok and that you can sleep too. The orange and the PB sandwich will help bring the blood sugar up (at least the bread will, not so much the PB). He's an adult, so he should know how to regulate this, but make sure he gets to the doctor to see about the pain and to tell him (the doctor) about the wide swings in blood sugar. And be sure to ask about the fish! Keep us informed about how it goes.