Spots Of Light And Others

I have been seeing small, brief sparkles of light for a few years now. Most of the time they are white, sometimes black, blue, and rarely, gold. I'm wondering if these are entities, energies, or the effect of aging eyes (I'm 51).

Something a bit more substantial happened about a year ago. I saw not sparkles of black light, but large blobs, kind of like what you see if you drop bits of black paint into water. Accompanying this, I heard "the death-bringers are here." I saged my room and cleansed the room with Reiki, after which I heard "the death-bringers have gone."

Seeing the bits of light and apparent clairaudience started about three years ago, after a shaman did some work for me. I don't have any mental illnesses nor any family history of same. I am part Cherokee, hence the interest in a shamanic solution to what was troubling me. I had felt frustrated, blocked, at trying to make more of my life. The shaman's work seems to have done something. She told me she cleared a lot but I didn't quite know whether to believe much of what she said.

I have been looking for resources to find out the meanings of the colors of the lights, what they are, and how to discern between when a voice heard inwardly is from clairaudience or one's own imagination.

If these are in fact mediumistic experiences, what is going on and what can I expect to happen if this progresses?

I also wondered what or who the "death-bringers" could possibly be.

I have seen websites of purported mediums charging upwards of $10,000 to "mentor" people who've had such experiences but even if I had that kind of cash, no.