high blood sugar and feeling very cold

I had high blood sugars a few weeks ago for a week or 2 (jus due to me being careless with my insulin) but now back on track. But yeah there was a few days i felt freezing n couldnt get a heat in me but think it was due to feeling constantly tired n lethargic because of my blood sugar level. I have felt much better the last couple of days tho since strictly carb counting again.