Welcome to HCM
I have read and understood your query
I hope this will be useful
Brown
vaginal discharge coming out is old blood that took time to clear out.It is normal if it occurs when a person is pregnant,or if it is around days of your periods or after a vaginal exam like
pap smear or vigorous sex.It may be due to infections but it may have been accompanied with pain fever
pelvic discomfort etc which you are not having
As you mentioned you have irregular cycles,so the discharge is most probably due to PCOD, if you are also experiencing of wait gain acne or more facial hairs,do get a abdominal
ultrasound.As you mentioned you had the discharge after sex,this was due to
stress of the sex.
I would highly recommend you to get an ultrasound and get medics for regulating your cycle
Rest if you dont want to,you have nothing to worry about this brown discharge except for irregular cycle.
I hope you have answer to your query now. you can reach me anytime with any other query
Regards Dr Faeza Sherdil