Thick Brown Discharge Thick Brown Smelly Discharge 3-4 Days After Period No Pain When Passing Urine Though?

Thick brown smelly discharge 3-4 days after period no pain when passing urine though? - thick brown discharge

I had problems with bladder infections in the white traces the past and is always difficult and painful urination, I'm 17 years old and started having sex for 10 months with my boyfriend of 1 year and was among the other first, but not now after a month too bad it 3-4 days after my time, I have a smelly brown discharge, but received no painful urination Has anyone Why Not?