Could be a shadow entity attached to you. I dont know what psionics is, if you can elaborate more on that, but that two could be related.
i been doing some research and it sounds like a shadow person, from the info i found on them they can be curious, (such as following you around as you said), they tend to peek around corners and if spotted they tend to run, but another thought could be your just staring at the "aura" your giving off....once again ill come back to this lol im tired right now and dont feel like typing much more, could sound like im ranting (which it probably does)