Question about neurogenic acquired stuttering !

Question about neurogenic acquired stuttering ! Apparently , this is a much rarer form of stuttering , mostly occurs after tbi , stroke, concussions etc . Does anyone here have a neurogenic stutter which started suddenly at advanced age ? What was the cause of it ? Is it accompanied by other difficulties in speech and language ? Does it occur in all situations ? Did you see a doctor or neurologist for it ? How is it different from typical stuttering that most stutterers have ? I started stuttering suddenly few days after i hit my head, running in to the wall , i also broke my tooth in that incident. It happened when i was 15. Now im 19 , and i still have stammer (mostly blocks ) . I didnt see a doctor for it cuz i didnt have any noticeable symptoms few days following that incident.