YOU SAID:

I feel bad because I am sick

INTO JAPANESE

調子が悪いので、私は病気

BACK INTO ENGLISH

Is wrong because I was sick

INTO JAPANESE

病気だったので違います

BACK INTO ENGLISH

Not because I was sick

INTO JAPANESE

私は病気だったので

BACK INTO ENGLISH

Because I was sick

INTO JAPANESE

病気だったので

BACK INTO ENGLISH

Because I was sick