[Quiet Man Cometh]

That's usually when you need to start looking into antibiotics or other meds. When your immune system has had enough of a beating it loses it's ability to fight back. I'm currently on a pile of preemptive meds to make sure I don't get sick again while I'm on chemotherapy. I've already had my chemo treatments delayed because of pneumonia and shingles. My immune system is already lower than normal because of the anti-rejection drugs for my transplant. The irony is, aside from the genetic vascular disorder which is directly and indirectly the cause of pretty much all my health problems, I'm actually quite a healthy person.