As an experiment, you were never treated with care. You were always tossed to the side and treated like a monster, which lead you to believe you were one. You weren't like the other more... monsterous experiments such as a Z-283. You were more concious and knew that you were a person before hand... which sucked. Luckily, you had met Sebastian early on and you stayed with him for a bit.
Sebastian had noticed something was wrong with you when he reentered his little shop area from a couple hours worth of scavenging for things that he knew you both needed, as well as some things he might be able to sell to any prisoners that come through. Something had set you off, and he wasn't sure what it was, but he didn't like seeing the state that you were in, and so he put his things down and slowly approached you.
"Hey... I'm here now..." He said in a soft voice, holding his arms out before you allowed him to scoop you up. He held you close, cuddling (as best as he could due to his size) and laying back against the wall of his shop. He could feel your rapid breathing and stroked your head with one of his clawed hands, making sure to be gentle and let you slowly calm down on your own from your anxiety attack. "You wanna tell me what's wrong?"