I started becoming swollen from my vagina every time after sex. i don't have any stds. can no getting lubricated cause this? what's wrong with me?

Vaginal swelling: Trauma, infection, irritation from ointments and soaps, allergy to semen, and rough or prolonged intercourse have all been reported as potential causes of vaginal swelling with sex. Lack of lubrication can certainly produce trauma of a sort. Do not know what your specific cause is, but this should be worked out with your gynecologist. Good luck.