you might be allergy to chicken
Hello and hope you are doing well.
You have probably developed a vaginal infection. Vaginal discharge can become heavier, change color or smell different in infections of the vagina. The swelling could be a bartholin's cyst. If there is accompanying swelling, redness, discharge and fever it is most probably infected. It could also be a lipoma or lymph nodes. You may need to consult your primary care physician who will examine you and initiate appropriate therapy.
Hope this helped and do keep us posted.