I can relate to some of this. Sometimes I will run into a post and reply because I feel concerned about the person because of what they have expressed. I'll think about what they said and how I replied for the rest of the day. I will edit when I think of a better reply or add another post. Other times, after sleeping on it, I will add one more reply the next morning. I do this either to improve upon a faulty first reply or because I think I have thought of an additional helpful thing to say. There is even one person (on this forum), whose posts (just a few of them) seem to sometimes trigger me and I find myself replying to the posts in an overly emotional way which I find quite weird (fortunately, the person is kind and understanding about it.)
PS. Thank you for all of your kind replies to my posts.