Hello /u/Fyphon. Do you have anyone in your family that stutters (or at some point in time)? Late onset stuttering is unusual but not unheard of. If you haven't I would have a visit with your doctor. I am not a doctor, but I'm aware that their are conditions that can lead to a person to begin stuttering. Stuttering is 'difficult' because it is generally looked at as a neurological condition (but not always). Some things that may lead to the onset of stuttering can include (but not limited to) - trauma (mental or physical), high levels of stress, emotional distress, neurological conditions that may not occur until later in life (like parkinsons) etc. But I'm not a Dr, please don't take anything I just wrote seriously until you do some investigation for yourself. I won't say anything definitive because the truth about stuttering is "it's complicated". For all I know you may have had a mild speech impediment when you were younger that "disappeared" as you progressed through your younger years (ask your parents/family if possible). If you did stutter when you were younger, their is a greater possibility of it showing up later in life. I hope you're well, feel free to PM me.