YOU SAID:

When I go to the doctor I am very sick and tired because I have the flu.

INTO JAPANESE

医者に行くとインフルエンザでとても疲れている。

BACK INTO ENGLISH

When I go to the doctor, I am very tired from the flu.

INTO JAPANESE

医者に行くとインフルエンザで大変疲れている。

BACK INTO ENGLISH

When I go to the doctor, I am very tired from the flu.