Do you see the contradiction though? You would confirm that you have a natural flow of speech, it's there. You know what it's like to be fluent. Now let's think about what's happening when stuttering occurs. It's effectively taking you away from your normal speech rhythm. It's a similar concept in Parkinson's disease. People with Parkinson's know what it's like to move in their natural flow. Neurologically, things are going on to take people with Parkinson's away from their normal movement pattern. Stuttering is the same.