I am hoping a Doctor, another medical professional practitioner, or an informed reader of this Mayo Clinic website can answer this question. Q: Is there any 'medical test' that can determine if the antibiotic drug, (Levofloxacin), prescribed for on onset of chronic Bronchitis, caused a substantial and very quick increase in pain (due to existing non-diabetic peripheral neuropathy, degenerative disk disease, and spinal stenosis? The new pain was immediate, within two days of taking the antibiotic, in my lower back, and down the back of both legs. It forced me to use a 'walker' until an MRI for further assessment can be conducted. Thank you.