Have you ever had severe, extensive abuse in your past ?

So degrading, so insidious, sadistic etc... that you now feel you are not even a human being? Like you are a 'thing'? Like you somehow, (even though it wasn't your fault per se) don't deserve regular things, other normal people do? And that you are less, and tainted?
Anyone relate to those thoughts? If so, did you ever surpass these notions, or heal and overcome them?