My theory is that difficulty getting your BG up is caused by increased insulin sensitivity at low BG levels. The result is that glucose in your blood stream is quickly sucked into all those hungry cells. And the BG stays low, in spite of the stuff you are eating. The fact that you also have 75 units of Lantus in your system reinforces the effect. As your BG rises, this insulin sensitivity fades. And you are suddenly back to those high levels ......
