Lows blows!

Bad past week and weekend with lows...

Have been struggling keeping my BG up in the last week. I don't know what or who to blaim it on (except for me I guess). Perhaps I keep miss counting my carbs, eat too many simple carbs or what.
One thing I know is that I am WAY more sensitive again to carbs (simple and complex) since I started exercising now back from France. Still haven't ridden my bike with this polar weather but have been consistent with the running my 7 miles every other days.
Exercise and cold weather might also be a reason for extra fast carbohydrate burning ratio. Not sure but will keep on working hard trying to stay above 70 and as usual stay bellow 170.