It's always a bit embarrassing to talk about such things with your doctors, but please do. This problem might be a massive thing for you, but for them it's just another day on the job... You were brave enough to admit something on an online forum, with hundreds of strangers, including trolls and people who might make fun of you and probably give advice that's sub par. Your doctor on the other hand would never judge you for opening up about a health issue, and is actually trained to help you. So put your health first.