urinary tract infection
"Took this drug for 3 days.The infection got better after 2 doses. However, I slowly developed headaches and a little chills on the 2nd day of treatment. Thought I might be getting a bit of flu so I ignored the symptoms and continue my medication. As soon as I took the last dose, my symptoms got worst.  I was so weak I could hardly walk. My eyes got blurry and generally nauseous and drowsy. As I type this, I still have all this symptoms with raised heart beat, occasional numbness of  my hands and feet. All I want is to sleep but too scared to sleep just in case it got worst. Nonetheless, the medicine does the job as it cleared my infection after two days of taking it but it gave me a bad experience  so am not taking this drug again."