yeah I have been hiding it ever since it started. I'm 19 and I've got two best friends who I've known for the last 16 years. I started stuttering around the age of 7 or 8 and still both of them don't know about it. I am very good at hiding it but yeah there are times where I do end up stuttering in front of them and so I cover it by saying that I got confused or my tongue slipped or I struggled to find the right words. Hiding it is a torture and I plan to be open about it in the future.