It involves a feeling of an energy vacuum or hole appearing in my chest, and a corresponding gain of energy from the nearest person. ...
So, in effect, I can cause people to lose their breath, and breath in suddenly, or suddenly cough, all because of this channel that occurs.
I have tried searching Google for any clues to see what this, and have only found a website about energy vampires. That website wasn't accurately describing what happens for me.
This phenomenon can't be interpreted through physics or science, which is why I am writing to you, to see if you can explain what is happening, why it is happening, and to point me in the right direction to learn more about things which can't be described by the rational mind and science.
The point is not to ask why but to ask yourself if you want to get rid of this phenomenon. I assume that you do not enjoy causing harm/suffering of others. And it may be that you yourself are suffering from it as well. This should then even increase your motivation to get rid of it.
So the question is: How to get rid of this phenomenon?
The issue is the vaccum or hole in your chest.
"Chest" is where the "heart" is, right?
Fill the vacuum/hole with something positive. You may want to try visualize a little Avalokiteshvara in there. One who emanates love and compassion in the form of rays of light in all the ten directions. Where these beams hit sentient beings their suffering turns into bliss.
Try it. But cultivate it first through concentrating your mind one-pointedly on little Avalokiteshvara in your heart and the loving and compassionate rays of light he emanates. Get routined with it so that you can apply it each time the negative "vacuum/hole"-phenomenon is on the verge of appearing.