Whispering

Someone is whispering.  I can never tell who it is but I can always hear it.  I'll tell everyone to pay attention in the hope that it will stop and I'll see a head turn so I can tell who the whisperer is, but it never works.  The whispering continues from seemingly all directions without a definite source.  I'm clinging to the idea that it is just my teacher skills needing development and not voices in my head.