What are the symptoms of pneumonia and how quickly do they develop in the course of covid-19?

Symptoms of pneumonia include fever (above 38°C), weakness, chills, sweats, feeling broken, cough with purulent (yellow) discharge, chest pain when breathing and coughing, shortness of breath, rapid breathing, headache, muscle aches, and sometimes also disorders of the digestive system - nausea, diarrhea and vomiting. Pneumonia in the course of COVID-19 is usually very violent (development within 2-3 days), because unlike bacteria, this virus immediately affects the entire lungs, not just part of them. We wrote about whether pneumonia is dangerous here: https://www.gdziepolek.pl/artykuly/czy-zapalenie-pluc-jest-grozne