I've had numerous experiences with OBEs, however, recently I've been experiencing something quite different. Instead of feeling my own etheric/subtle body rise out of my physical one, when I relax my body before sleep, sometimes I feel someone else's etheric/astral body rise out of me, while my consciousness remains in my physical body. It feels very much like OBE, but the only difference is that my awareness is in my physical body and I observe/feel someone else's ethereal body or energy (whatever it is) rise out of me.

What could this be? It definitely doesn't feel like my own essence. I've read that sometimes a spirit can inhabit a person's body, so could that be it...that whatever spirit has inhabited my body was leaving it? The whole experience was a bit freightening and I'd just like to get some feedback on what it could be. Thanks.