Gregor had a lot of (A)stresses in his selling job are much greater than the actual work going on at the head office.
Explanation:
He goes on to tell that he dislikes getting up quickly and that he nevermore takes enough sleep.
Even though Gregor dislikes his job, He continues his job, however, because his progenitors owe his supervisor money, and he demands to protect his origins and his sibling.
He believes that in five or six years, he will resign his job, once he's paid off the money.
His parents treat him like a useless vermin, they make him help them through serving a very difficult job as a business traveler.
