Hi i m 28 and this tym i got my periods but its stinking very bad never happened before?

Vaginal odor: Generally, if you have a vaginal odor without other vaginal symptoms, it's unlikely that your vaginal odor is abnormal. However, infections can also cause bad odors and even more serious a retained tampon in your vagina (since you are menstruating) is also a possible cause. So, it is best you see a Gynecologist for an evaluation of your new foul vaginal odor. Best wishes.