See a pulmonologist ASAP. I had pneumonia the spring of 2006 that almost killed me. It was probably caused by mold. Two lung biopsies were inconclusive. I'm still not 100% recovered, and have a golf ball size scar that looks like an octopus from the damage the fungus caused. If you have fungal pneumonia, antibiotics will not help. You need a CT scan to see the specific location and extent of the pneumonia, and if a biopsy or PET scan is needed.

Pneumonia is life threatening and can rapidly overwhelm your body's ability to fight back so please err on the side of aggressively getting a conclusive diagnosis and appropriate treatment.