Vaginal pain

Lately my vagina is feeling hurtfull.
After or during being sexual with my boyfriend, but not having sex (only riding on him and touching with clothes on etc.) I feel that my vagina is fragile and irritated. After 5-10minutes or something.
I also have this feeling when I touch myself, or just when randomly when I wipe myself clean after I pied or something. Do you guys have any idea what's wrong with me? 
(Sorry for the bad spelling, I'm not english so that's why XD)