Stuttering is very individual. Whether it be stuttering styles, secondary traits, severity, words or sounds. There's no real normal. It's also often variable. My advice would be to see a speech pathologist, but you should know, stuttering is still pretty rare and most general speech pathologists don't really know how to deal with it or even that much about it. So you really need to make sure you can find someone who is either board certified in fluency or really specializes in stuttering.