You Left a Tampon in For Too Long
Yes, this sounds gross, but hey, it happens! If you left your tampon and forgot all about it, you might smell something rotten downstairs. First of all, remove it. Second of all, go see your doctor and make sure you don't have toxic shock syndrome (TSS). Usually, TSS is accompanied by a fever, rash, and redness around your eyes and mouth. Even if you don't have these other symptoms, though, check in with your doctor after you take out the tampon just be sure.