YOU SAID:

Once I got my blood drawn and I almost fainted

INTO JAPANESE

血を引いて、ほとんど気を失った

BACK INTO ENGLISH

I lost blood and almost lost faint

INTO JAPANESE

私は血を失い、ほとんど失神しました

BACK INTO ENGLISH

I lost blood and almost fainted

INTO JAPANESE

私は血を失い、ほとんど気絶しました

BACK INTO ENGLISH

I lost blood and almost fainted