Help me !!!

TMI !! my discharge stinks but the colour and consistency is "normal". I don't know what do it and it's embarrassing because it's clinging onto me like an odour and I can smell it through my clothes in public, and I'm very sure my friends can smell it too. Also with my discharge my underwear is covered with brown stuff that looks like what your underwear would look like if you haven't washed and wore the same underwear for days. ITS SO EMBARRASSING and perfume will not do the job!