Help. I am the manager of a travel agency and it is very fast paced, busy environment and we need to be really switched on. But I am honestly getting so tired/exhausted that I am struggling to keep my eyes open. I just want to crawl under my desk and have a nap. It actually feel like my body can't do anything because I'm so tired. It's not all day but maybe for the last week it has just got to a point in the day, usually around 3pm, where I am just on struggle street.