discharge mean that I still have the infection?

i recently found out I had an infection from a tuble pregnancy from a year ago, so I was prescribed an antibiotic for it because I was having lower stomach pains, headaches, nausea, constipation, and a funny colored discharge, I was tired and irritated all the time and the discharged looked like some thing release at the end of a cycle, so since I hadn't had a cycle in a long time and I had just got off my monthly shot, I thought it was a cycle but tured out to be an infection. I am through taking the antibiotic and am now feeling tired and having lower discomfort on the lower right side of my stomach and my breast hurt, which was also one of my symptoms when I went to the doctor for the infection they told me i had, I wanted to know if that mean that I still have the infection and need to go back to the doctor?