Varicose vein(s) in vagina. 2nd pregnancy

Hi all. I have been experiencing pain and throbbing pressure in my groin/vaginal region since around 18 weeks. It gets worse when standing all day, lifting, etc. Tonight I looked in the mirror and saw that I h e a varicose vein or veins on the inside lip of my vagina. Has anyone else experienced this? Do they go away after childbirth? I’m 30 weeks, due June 11th with 2nd baby. Thanks in advance!