30s is the oldest I've ever heard of such a thing but I've heard of people developing one in their 20s. >did i always have it and i just didnt notice?  Maybe your parents could answer this one better? Some people do stutter but it's so non-interfering they don't notice because it's a non-issue. My only advice would be to not fight against it and try to be fluent. Sometimes you may stutter and sometimes you may not