I don’t have any direct experience with this, but what you described seems similar to what happened to some people who have awakened kundalini energy. Here’s an article about this I found on medium. There are definitely real dangerous with this. You should probably work directly with an experienced teacher in the Tibetan traditions, or someone familiar with kundalini, rather than trying to work only with books and videos.

Kundalini - the Secrets and Dangers of the "Coiled Serpent"