Posting this under the heading it deserves: Talking to a therapist about this specifically Everything below is what sits behind that.
Something that has come up for me and that I suspect is more common than the discussion suggests.
It is not a side effect in the labelling sense and it is not nothing. It has changed over 7 weeks in a direction I did not expect.
Nothing here is advice from me to anybody, and I would like to hear how other people have thought about it.