I Have Had A Kidney/bladder Infection For 7 Months After

I have had a kidney/bladder infection for 7 months after taking Ivokana for diabetes. I've been given several prescriptions and finally given Levofloxacin 500 mg. I am 82 years old and have not only been awake three days and nights after only taking one a day but nauseated as well. I am up now at 5 a.m. The nausea is terrible, dizzy, not able to sleep. If I must take this to finally get over the kidney problem (I take a specimen in once a week) is there some relief as I have four more tablets to go? YYYY@YYYY