A few months back I developed a itching sensation around the entrance of my vagina and this then turned into yellow discharge with itchiness and slight fishy odor. This occurred 2-3 weeks after having sex (partner at the time did not have any infection or
STD). 3-4 months have passed and there is still yellow discharge and it only itches or gets worse close to when my period begins and then few days after my period. What could this be? I've had sex during this time and it felt perfectly normal.