Yes, I am very intense, though very self-conscious in certain social situations and definitely introverted. I have learned over the years to tone it down when I'm teaching or presenting, as I tend to overwhelm people when I share my knowledge (and enthusiasm for mathematics and science). Hearing my daily schedule can exhaust people...

Still, my family and some close friends are the only ones who see the full extent of my intensity most of the time, as my shield is up most of the time, as well.