What's up with this

I hadn’t used MYOPLEX for quite some time.But the 42 variety-pack
was on steep discount at GNC,plus with my Gold Card 20% discount
it cost only $49.80.I couldn’t resist the price(those ruthless
bastards!) I blend it with a brown pear and ice for one of my protein-
carb meals on the J.B. maintenance plan.

Well,here’s the problem:1-1/2 hours after drinking the MYOPLEX,
I become light-headed,irritable and ravenously hungry.(Blood sugar crash!)I’m a bit sugar-sensitive but have never had this reaction with
any other meal replacement. Question:have any of you T-Folks ever had
a similar reaction to this “powdered menace?”