really? oh I'm glad it's not STD then...
but sorry for false type my discharge is not yellowish but it's clear white.... sorry.
Hi, sex 3 months ago would not produce symptoms of any std this late in time as most often would appear about a week later. Sounds more like a common yeast infection. You might want to talk to your pharmisist for some vaginal cream or as kingkroy suggests have a doc check you out.
That yellowish viginal discharge is already a go signal for you to visit your doctor.