I dodged a bullet this evening. I had a really bad headache and laid down at 5:30PM and fell asleep for an hour. When I woke up, I still didn't feel good so I decided to check my blood glucose and I was at 27. It had been 4 1/2 hours since my lunch time bolus of Novolog and I don't know what brought the low on. At lunch, I took a bolus of Novolog and since I ate a familiar food and have not had any trouble with it, I used the same amount of Novolog that I always take for that food. I have never had a severe hypo that required the assistance of another person to help, but I am wondering how close I am to getting into trouble. I had a slight shaking of my hands when I tested at 27. I guess the headache could have been a sign, but that is not a usual low symptom for me. Has anyone ever had a severe low that required the assistance of another person?