I feel you .. I just had something like this happen to me today at the grocery store. It is what it is.. people don't know unless we tell them or they've experience someone with it. Some people are hyper aware but I don't think that's the norm. If it bugs you ,say something about it. Just tell them got a talking problem.. if you cant say it at that moment, point to your mouth when u get a block and then try to say it (this is what I do) You got to let that anger go, it took me until my late 20s to let that anger subside , i know you can do it too.