it is normal. you're beginning to see what "normal" really is and being abused throughout your childhood, it takes some time to adjust to since you have never seen "normal".
i'm not dealing with this but back in 2006 i saw a very good psychologist and she told me this would happen when i get out of this house. needless to say, i'm still waiting to get out.
give your self some time. you will be ok
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花鳥風月
c'est tout ce que j'aime