Being Conscious to me is knowing who you are. Having a concept of self. Being type one diabetic I have experienced first hand what can go wrong with this concept of self due to low blood sugar level (hypoglycemia). I remember how I, at one point in time, felt that I could not walk anymore in a straight line. I fell down.
Some teenagers started laughing because they thought I was drunk, or a drug user. I remember clearly how my brain reported back to