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.
you might be allergy to chicken