I have controlled my speech a lot, rather have been able to. If I spoke to a PWS now, I think I would be able to "control it". Yes, maybe one can be comfortable with another PWS but would really depend on the person and how much of a stutter they, or we, have. This feeling of mental exhaustion is not healthy and leads to an anxiety disorder (not always though). Do give yourself a break. One tip by PWS is stuttering in front of ppl (I could never do that) so we can get over this fear we have in our heads of stuttering. I have seen many PWS do this and have envied their stutter but that's just shallow thinking on my part. ...."stutter freely"...that's needed sometimes.