Is it normal to feel weak after having the flu?

It is very normal to feel weak after having the flu. The flu is a viral infection of the respiratory system that can cause fever, chills, muscle aches, fatigue, sore throat, runny nose, and congestion. These symptoms can make you feel extremely tired and weak. In some cases, the flu can also lead to complications such as pneumonia, bronchitis, and sinusitis, which can further worsen fatigue and weakness. Additionally, the flu can also cause dehydration, which can also contribute to feelings of weakness. It is important to rest and stay hydrated after having the flu to help your body recover and regain its strength.