Lizzy Rosen
You say you get energy from one who isn't in your friendlist. Did you delete that one perhaps and that person was on your friendlist before?
Cause that's the only thing i can think about. You see, when you delete a person from your friendlist, then it's only removed from your own friendlist and not from theirs. Can take a couple of days before then perhaps you won't receive any energy anymore from that one.