It is the energy isn't it? Like I've said before, it's fine to begin with if you've hyped yourself up about it. That's why I don't like it if people spring things on me without prior warning.
Again, same. I rarely go into different dimensions of thought; my thoughts will be about my life and people in my life, my study or work, or broader topics like current affairs and social issues which have practical effects. Occasionally there'll be thoughts of a spiritual nature, but that's when I've been alone for too long. I wouldn't call myself unimaginative, more like untheoretical.
It makes me think of the inner world of an IN vs. an IS. I don't know what the inside of an IN is like, but is it more imaginative? My thoughts are constantly regarding things going on in my life or things that have happened recently. It could just be Si at work. When I'm really in tune with myself thinking, I start replaying things in my head over and over again, like lines from a book or a tv show or a conversation with someone, or I'll go over a subject at school in my head trying to intentionally recall it. My focus is more on the things that have happened in my life that added significance.