YOU SAID:

Breathing fast and heart beating fast, JB quickly falls unconscious just before admission.

INTO JAPANESE

呼吸と心臓の鼓動が速くなり、JB は入院直前にすぐに意識を失いました。

BACK INTO ENGLISH

His breathing and heartbeat became rapid and JB quickly lost consciousness just before being admitted to the hospital.

INTO JAPANESE

呼吸と心拍が速くなり、JB さんは入院直前にすぐに意識を失いました。

BACK INTO ENGLISH

His breathing and heartbeat became rapid and JB quickly lost consciousness just before being admitted to the hospital.