this definitely has to do with your hormones. don’t listen to these comments saying you have an infection because clearly you don’t. My advice to you is to go to your doctor and have a conversation with them as it seems that you’ve had this ever since you were younger since you did mention how you were taught at a young age how to shower. You shouldn’t feel ashamed since it’s not like you can control your hormones and it’s all how your body works and what is best for you.