YOU SAID:

I am not feeling well today. That well water is the cause.

INTO JAPANESE

今日は体調がよくありません。その井戸水が原因なんです。

BACK INTO ENGLISH

I'm not feeling well today. The well water is to blame.

INTO JAPANESE

今日は気分がよくありません。井戸水のせいです。

BACK INTO ENGLISH

I'm not feeling well today. It's because of the well water.

INTO JAPANESE

今日は体調がよくありません。井戸水のせいです。

BACK INTO ENGLISH

I'm not feeling well today. It's because of the well water.