これは私が勝手に行っている事です。あなたに頼まれた訳ではない。
だから気を使わなくても大丈夫です。
This is the thing I have done without permission. Don't you asked.
So it is okay to have bothered.
This is what I have done without permission. It does not mean that was asked to you.
So okay even without a care.
This is my thing. I don't asked you.
So as not to worry about it.