YOU SAID:
I'm not feeling well because I had a bad day at work.
INTO JAPANESE
私は仕事で悪い日を過ごしたので気分が悪い。
BACK INTO ENGLISH
I feel sick because I had a bad day at work.
INTO JAPANESE
私は仕事で悪い日を過ごしたので気分が悪い。
BACK INTO ENGLISH
I feel sick because I had a bad day at work.
You've done this before, haven't you.