Side effects - The LSA dot

[Ontherooftops]

After taking HBWR seeds fairly regularly, once or twice a week, for a couple months, SWIM noticed a small dot in the center of his vision. The dot was actually vivid enough that it obscured what it hovered in front of. When he smoked grass the dot changed into a sort of screen upon which tiny little images and stories would unfold. Even after stopping the seeds, the dot persisted for almost 3 months, and while at first this dot was somewhat interesting, it eventually irritated him quite alot, making it difficult to write or use a pen because the dot covered part of his writing or drawing.

Anyone heard of this or anything like this?