I am feeling a burn after I pass urine and urge to pee after every 15 mins. I am not drinking too much water that will cause toilet runs. It's very little amount of pee each time but burning remains. I am experiencing this since a week after my periods. I use a menstrual cup and after my period ended this started. I am not sexually active for a year.I am breastfeeding my 9 month old. There's no external infection or rashes. The burning sensation is just on the inside. I had a fungal infection 4 months back and it was treated in 2 months I was relieved. This time it's not like a fungal infection, nothing on the external but extreme burning sensation on the inside.