I have a light discharge after taking metronidazole 500mg for 7 days, is this normal?

Im taking metronidazole 500 mg for 7days to cure BV. I started the pill and coincidentally I also got my menstrual cycle. Now Im done with both, and I have a white light non- smelly discharge. Is this normal? Am I just freaking out? Should I go back to the Dr.? HELP!!!!
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