Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
Either you may be suffering from acute infectious enteritis
or antibiotic associated diarrhea
as you were taking levofloxacin
So get a stool examination routine microscopy if it contain leucocytes
or pus cells then take a course of antibiotics or otherwise take combination of pre and probiotic
and stop levequin if you are still taking
I hope I have answered your query and this will help you. Remain in touch and get-well soon