So i have had sex with my boyfriend for first time last month.I got my periods the very next day but was light.I found my vagina is itching after the next day of having sex with him.I have never experienced an itch like this after having sex,it was like my whole vagina including the inside opening was itching.It just reduced after a week or so.I started using V-wash plus for the first time after i got itching.Actually i felt better but not completely gone.Like again i started itching like before again today morning. i have this pain in my vagina for the second time yesterday after a few days gap from the first.Its sore too now.I remember washing my vagina and using toilet paper for the first time the day i had sex.I have this doubts,1)Is it cause of too much of washing that day so ph balance got interrupted?2)Yeast infection?3)Or is it from my boyfriend(As ma ex only have gave me a very small itch and that too only once,when i had my first ever sex with him & in my life)4)Or is it something else?Also this was my first oral sex,i too did It for him.Is oral having anything to with itching.