I've been having a smelly (rotten eggs) brown/tan discharge for the past few weeks, and I want it to go away!! I'm 22 years old and only sexually active with 3 partners, one who I've been with for almost 4 years, the other two have been tested (I don't use any form of BC other than condoms, but use them all the time).  It started a couple of weeks ago and I thought I was leaking urine.  Then I got my "period", but instead of the normal red through the majority and brownish towards the end, it was a very deep brown color the entire time and disgustingly smelly (and pretty light flow comparitively).  I don't have to use tampons anymore, but if I go without a pantyliner, I stain my panties and think I'm still having urine leakage issues.  I've been cutting caffeine out of my diet and practicing my kegels more, but this is really bothering me.  I have started becoming less social and sexually active because of it...worried about others smelling me or my partners health (just in case, though I highly doubt STD).  The only info I can find online is pregnancy stuff or post-period "spotting".

Summarized question: What is smelly, brown vaginal discharge a symptom of?