What are the symptoms of pneumonia without fever?

My pulmonologist recently explained that 'atypical pneumonia' or walking pneumonia often presents without any fever. Instead, patients complain of a dry, hacking cough, fatigue, mild wheezing, and a feeling of chest congestion. He stressed that a chest X-ray is the most definitive way to diagnose this.

When the lungs are congested, even without a fever, you will feel a heavy tightness in the chest, shallow breathing, and a dry or wet cough. During my recovery, very gentle breathing exercises helped, but only after getting proper medical treatment. Please let a doctor examine your chest first.

Sometimes our body doesn't show a fever even when there is an infection. If you have a constant cough, mild shortness of breath, and feel very weak, it could be silent pneumonia. Please rest well and consult a nearby doctor for a chest checkup.

I can only speak from my own experience when I had this last winter. I had no fever at all, just a continuous, exhausting cough and a strange rattling sound in my chest whenever I took a deep breath. I thought it was just a cold, but my doctor diagnosed it as mild pneumonia after an X-ray.