My clitoris feels achy and sensitive?

About a week ago, I was being like any normal teenager and masturbating. The only difference being after that particular one I felt a horrible achy feeling afterwards like I was still aroused. I ignored it and the next morning I felt fine but I needed to go to the toilet often. It was like that for a few days until I felt aroused again and masturbated as normal. Only that time it was much worse, I instantly needed to pass urine, the aching was worse and throughout the day it became unbearable and extremely sensitive to touch. Now I feel an aching that becomes sharp pains later at night, it sometimes feels to be on my clitoris but then sometimes it feels like general aching around the area. It hasn't been a long time, but I'm getting worried and it is upsetting me so please can someone help if they have had the same?