I've been getting hypo symptoms at 3.00am for the past week, readings range from 55 to 80. I normally get up and have a glass of milk and half a cookie. That gave me fasting sugars of around 120. Last night, I was very tired when I woke up with the shakes. I didn't check my bg and went back to sleep as I just couldn't wake up. This morning I woke up to a 85. I've never been this low in the morning. I am just wondering, how dangerous is it to ignore a 55?