Can you get diabetes in two days if you eat a lot of sugar and have metabolic syndrome?

I'm taking a medicine that decreases my metabolism. My sugar is 6.1 a month ago and diabetes is 6.5. I ate nearly a whole praline cake in two days i think that equals 250 grams if sugar and 400 carbs a day. I was told u can't raise ur sugar that much in two days but I'm still worried
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