Hi, I'm 69 and I'm new to Reddit but I'm blown away by your observation that your stuttering is seasonal. See LevelProfessional1236 and my response to him. So now there are three of us who have experienced seasonal stuttering. SO THIS IS A THING! A thing that should be of interest to stuttering researchers. Stuttering research has had many twists and turns, but IMHO it is just this sort of weird observation that leads to progress. Also, there is an interesting paper by Prof. Eric Jackson (NYU), “Adults who stutter do not stutter during private speech”, Journal of Fluency Disorders 70(2021) p. 105878.  In his study, he convinced people who stutter that their speech would not be heard. Under those conditions, all of his 24 subjects were completely fluent.    So my question to you is:  if you can find a place where you really know that you are completely alone, if you then take out a book and start reading aloud, are you fluent?    Irrespective of what your answer is, best of luck to you going forward! If you want to read further, I would suggest the Bible of stuttering research, "A handbook on stuttering 7th Edition" by Bloodstein et al. It is expensive but your library might have it.