Need Help!

Ok so I'm 36.5 wks and have GD(on insulin shots). Ever since the morning, my Glucose levels are high at 177+ 2hrs after meal.

I'm feeling very off...light headed,foggy mind,tired, and very emotional(been crying for no reason).. baby is moving good...dont know what to do.. are these levels too high to be dangerous? When should I call my doc?