I've been sick for 3 weeks. Thought it was a virus. But when it kept getting worse I figured it wasn't. My symptoms were upper stomach pain. Drowsy. NO fever.

Did blood work-okay. Ct scan-ok. Urine Specimen-bad urine, preserved CULTURE
>100,000 COL/CC KLEBSIELLA PNEUMONIAE
>100,000 COL/CC ENTEROCOCCUS FAECALIS


Dr. prescribed Nitrofurantoin


Questions:

How bad are those bacteria? Does antibiotics raise your temp? Since starting them I feel hot! Can it spread to your respiratory system? Or just piclked up a bug at the hospital? Now I'm congested.
Is that medicine good?

I hate being sick.