4) Nasal congestion
Nasal congestion is a condition in which the nasal cavities become filled with fluid, making breathing difficult due to increased mucus production. Associated symptoms include a stuffy nose, difficulty breathing, and a decreased sense of smell.
Nasal congestion can be pretty uncomfortable, and it can make breathing difficult. The sense of smell is reduced, and a person may feel pressure in their face and head. It can also lead to a feeling of exhaustion and a general feeling of being unwell.
