A ta place, j'aurais tout de suite commencé au passé : Paul WAS a business man, he WAS sixty.
Ensuite, je crois qu'il est plus juste de dire "He wanted to go TO THE toilet but AS he didn't know where it WAS he asked THE hostess."
Après, "She was shocking, she BEAT off and he FELL. He couldn't move ANYMORE"
"He needed HELP (pas de "to"), the hostess CAME"
"He was too HEAVY" (plutôt que "big") so, five men CAME to help HER. Then (pas besoin de répéter qu'ils le portent), they HELPED (ça répète un peu trop le verbe help mais bon...) him to sit down. He WAS SO HURT"
Pour finir, "He went to THE hospital".
Voilà, en espérant t'avoir aidé et ne pas avoir dit trop de bêtises...