Hello First we will discuss about nausea and feeling of sickness . As you mentioned in your query that you took two type of antibiotics . Usually antibiotics develop hyperacidity and gastritis in common , so nausea may be due to these two antibiotics . In such type of condition I usually recommend proton pump inhibitors like pantoprazole-d tablet twice in day . I also prescribe antacid syrup ( better if it contains oxetacaine i.e. local anesthetic) . Now still pain on the right side ( lower part ), also pain in back. This type of symptoms may be due to salpingitis ( inflammation of salpinx or fallorian tube or in ovary on the right side ) . Diagnosis can be confirmed by ultrasound of these organs . Second reason of such pain may be urinary tract infection . Get in blood for C B C , Serum creatinine level and urine culture and sensitivity. The next reason of this pain may be uterus fibroid or cervix inflammation . Get in ultrasound of uterus . As you mentioned that there is bleeding and urinary tract infection with pain in the right side , so all these symptoms are co-related . In my opinion consult a gynecologist and get his opinion.