How lethargy works, how fatigue impacts you, how going to the hospital multiple times can be draining.

Source: https://www.hulldailymail.co.uk/news/real-life/i-came-back-holiday-needed-8505954

In dogs the disease can include symptoms such as infertility, lethargy, premature ageing and lameness from back pain, but some infections in dogs are asymptomatic.

Source: https://www.derbytelegraph.co.uk/news/uk-world-news/brucella-canis-three-humans-catch-8765071

McManus took legal action against the club, saying he suffered more than 25 concussions during his career, leaving him with impaired cognitive function and memory, depression, anxiety, lethargy, sleep disturbance and the risk of long-term dementia.

Source: https://www.newcastleherald.com.au/story/8122260/the-nrl-is-using-its-head-on-player-welfare/?src=rss

Other common signs include sneezing and a runny nose or eyes and lethargy.

Source: https://www.reviewjournal.com/local/local-las-vegas/nevada-dog-owners-advised-to-prepare-for-spreading-mystery-disease-2945128/

Symptoms are individual to each person and can vary from abdominal pain, bloating, increased flatulence, diarrhoea, constipation and passing mucus, to lethargy, nausea, backache and bladder issues.

Source: https://metro.co.uk/2023/03/01/how-exercises-might-improve-gut-health-and-help-manage-ibs-18362731/

“What I saw against Bournemouth (a 1-0 defeat) was a lethargy.

Source: https://www.expressandstar.com/sport/uk-sports/2023/04/20/dean-smith-wants-leicester-to-play-without-fear-against-wolves/