I have been suffering from painful urination for close to three months now (without any discharge). In the first month i completed a round of doxycycline. During the second month I had a round of levofloaxacin while awaiting my full STD check results. When the results came out, my blood work showed non-reactive to all STD's, however a urethral swab test showed a minor presence of gram negative coccobacilli 1+. My doctor then gave me a rocephine shot and a course of erythromycin which I have since completed. It has been 1.5 weeks since the rocephine shot but I still suffer from painful urination (not severe and no discharge). Does this mean I have developed a resistance of the medication? What would be the next course of action? This is causing me severe stress and sleepless nights.