18 year old female with painful, burning sensation

Patient: For the past week i’ve been getting a strange burning feeling towards the end of peeing and only after. It lasts for a while. I feel like i always have to pee even right after i just went. Its uncomfortable and irritating. I cant hold my pee in for long. It starts to burn and my lower stomach starts to cramp. I dont know what it could be.

Symptoms: Burning of the vagina

Doctor: