Initiation Question

Hey guys,
I am working through the black Magick course from EA Koetting and I am buying things and learning the incantations or orations in section 3 part of the course. Is it normal to feel as if something heavy is upon me or over me? I have been feeling a bit chaotic or maybe a chaotic energy around me after repeating in my mind or outloud the incantations. I have felt this type of energy before, since I was young. I also get some type of impressions or visions in my mind of spirits or things of that nature but they not are full on visions to the point where I only see the vision, they are mostly in my mind. I feel sometimes some type of chaotic energy around me, is that normal? Is it part of what I am getting ready to do?

Thank you for your time and help in advance. I really appreciate it.