Stinging labia when peeing

Patient: Hi im 19 and a virgin I masturbated yesterday rubbing my vagina and now when I pee somwhere where my lower labia minora is located stings it is very uncomfortable to pee however other than that it doesnt bother me. Also I found peeing in a bath filld halfway makes peeing easier as I dont feel the stinging however I cant always do this. Please help !

Doctor: