I Keep Getting A Sharp Pain In My Vagina.There's Also

I keep getting a sharp pain in my vagina.There's also a stinging sensation. What could this be and how can I treat it? It seems to keep coming and going. I have also recently had period pain between periods and I was sexually abused as a child, I don't know if that's relevant. I don't have any unusual discharge but I feel like I need to pee more often.

Thanks

Abi