What Causes Tingling And Itching Feeling On Clitoris During Periods?

Hi, for the past year, around the time of my period generally I've had this tingling feeling in my clitoris that almost makes it feel like it itches but it lasts all day, sometimes for more than 1 day. It sometimes feels like I have to go to the bathroom. I don't know what's wrong but it's really distracting. Please help!