YOU SAID:

I didn't want to add to the already tense situation, but what I saw yesterday convinced me that Yuna could be suffering from--

INTO JAPANESE

私はすでに緊張した状況に加えたくなかったが、昨日見たものは、ユナが苦しんでいるかもしれないと確信した。

BACK INTO ENGLISH

I didn't want to add to the tense situation already, but what I saw yesterday was convinced that Yuna might be suffering.

INTO JAPANESE

私はすでに緊迫した状況に加えたくなかったが、昨日見たものは、ユナが苦しんでいるかもしれないと確信していた。

BACK INTO ENGLISH

I didn't want to add to the tense situation already, but what I saw yesterday was convinced that Yuna might be suffering.