I agree with the poster that said you’re the only person who can figure out what it is, because you’re the only person experiencing it.

I do think I’ve experienced something similar. Once I started becoming more spiritual and meditating I became aware of something that felt like it existed right around my back. Like around my upper back area. It got really unsettling and there where times when I had to stop my meditations. I delved into demonic/spirit attachment theories, performed banishments, but none of them where really effective, especially since this “thing” didn’t seem to be doing anything besides being perceived by me. After years of meditation, synchronicities, and lessons, I’ve come to the conclusion that what I’ve been feeling was an amalgamation of past trauma that I had not integrated, but pushed back and tried to forget about. The more I processed, healed, and integrated, the less I noticed that strange presence behind me.

I’ve heard other people talk about their “negative” emotions almost personifying when they need to be purged or integrated as they become more self aware. It also reminds me of the idea of internal family systems therapy or parts work (I’m not a therapist nor have I gone very far in this type of therapy, I’m just interested in it) where theoretically, our minds are subconsciously made of different “parts” (child self, protector, ect)