It makes sense because you have a stutter. Its cringey because you realize “hey I sound like that”. This experience can be applied to any other insecurity. Example: when I was much larger I would cringe at other fat women wearing “clothes not meant for them” because somehow in my mind that reflected poorly on all fat women, therefore me too. Basically I only had beef because I was really insecure about my own weight. We cringe at stuttering more than the average person and it’s important to remember that.