I was diagnosed with T2 about 5 years ago and have been on insulin (Humalog Mix 25) since November 2011. My sugar levels went up to 10.2 on Sunday and I didn't really know why but I then started to come down with a cold. Would this be the reason? What is the best thing to do - just increase my insulin until the cold goes? Should my sugar levels start go back down when the cold subsides?