question: Hi, i'm 25 years old girl. I don't know exactly what's going on but I suddenly like blank for a second and when I realize I wasn't in the same stand I was a second ago. It happen quite frequent. Now, I had a feeling like suddenly blackout for 2-3 second while doing something. When this situation happen, I realize I don't walk properly like suddenly go to the other side (opposite to the direction where I wanted to go). I have history of frequent migraine and palpitation. I don't have any other history of medical illness.