the dawn phenomenon isn't a condition that only happens to some people if you know what I mean....
because you have been sleeping and fasting for a good while, the body needs fuel to get up, in the absence of anything quickly accesses from the gut.....so as well as the energy the liver provides [in varying quantities depending on the person and their diet, even if you haven't went low...] there are other hormones released which will increase insulin resistance....
so I wouldn't worry at all at those readings you posted....