i had sex on the 19th of june.. and ever since the 23rd of june my vagina has been itching.. i started producing a smelly brownish discharge that is very light... i started using an anti itch cream to stop the itch but it didn't help...if i itch my vagina it bleeds and burns when i urinated, as thought there's a cut on it.. im too scared to go to the doctor, can it be an std? or just a infection? i need advice ASAP!!!