YOU SAID:
you're doing me a concern
INTO JAPANESE
あなたは私に心配している
BACK INTO ENGLISH
You are worried about me
INTO JAPANESE
あなたは私を心配している
BACK INTO ENGLISH
You are concerned about me
INTO JAPANESE
あなたは私を心配している
BACK INTO ENGLISH
You are concerned about me
That didn't even make that much sense in English.