I have a healthy concern for what my boss and my co-workers think, but I don't think I'm a worrywart. 我才不信呢.你自己不也老是担心工作,老是担心你的老板和同事对你印象不好啊。
Don't listen to him& he's just an old worrywart. 别听他的&他只不过是庸人自扰。
EXAMPLE: My cousin is a worrywart who never enjoys vacations because he's always imagining possible disasters that may occur while he's away from his job. 我的堂兄弟经常杞人忧天,从来没有好好度过假,因为他总在想象,他脱手工作后可能出什么大问题。