I stuttered when I was a kid around 5 to 6 years old. I think it began I went on a trip to Hong Kong with my family. It was winter there and when I got back, can't even pronounce my own name. Now 27 years old, the stutter came back. I don't know why but I can pronounce names beginning with some letters like N,M,I and R. If I try I will stutter and if somehow I managed to pronounce it after several tries I would feel light headed and get that fainting feeling.