She went into a crowd thinking her health problems were merely her chronic ones, and found out she was much sicker than she supposed she was. THEN got diagnosed with pneumonia.
(Mycoplasma... “Myco” means fungal... I had no idea that pneumonia was fungal.)
Not all pneumonia is Myco. There is also bacterial and viral pneumonias.
Pneumonia is an infection of the lungs by whatever pathogen.