A feeling..

A feeling you can not explain
It is not describable for it is not just one thing
It is all that is harmful
And nothing that is good
Its potential is not meant for good
If not controlled can destroy you
If you let it in again it will not release you from its grip
It leaves you vulnerable
Like you can never be protected
If you escape it haunts you
Watching and waiting for its opportunity to overcome you
Its a feeling that is so unsettling yet
It becomes a part of you
So confusing
It's hard to tell the difference anymore between it and yourself