Hi, I had a curiously similar experience. I had a mild stutter from the time I was a wee lad until a week and a day before my 66th birthday, on June7, 2021. I suffered a major stroke. I was in intensive care for a little over 2 weeks, and for much of that time I was "out of it", e.g. worrying that a colleague had planted a computer program in my brain. Two weeks after my release, I was visited by a neurological nurse. When she left, my wife said, "Do you realize that you were fluent for the entire conversation?" And I have been pretty fluent thereafter. My interpretation of my experience is that I simply forgot that I stuttered during my hospital stay. But I'm not a doctor. I don't believe that low self-confidence was the cause of my stuttering. IMHO, it works the other way: stutterers' self-esteem may be low because they stutter. But I'm no SLP. Can I ask, what sort of anesthesia (if any) did you have for the procedure? Were you knocked out? If so, how long were you "out of it"? Is it possible that you also forgot that you stuttered while you were knocked out? Obviously, if both you and I had the same type of anesthesia, that would be really interesting, and something to follow up. Congrats on your fluency-recovery.