I did make a microblog on that boston community, and it showed up on lemmy.
Based on the state of lemmy, I’m guessing the microblog->post issue is on the lemmy side of things.
Might it have something to do with the type of content?
I noticed, looking in your profile that KBin refers to your boston content as a ‘thread’ while lemmy calls such things posts.
There are ‘posts’ in kbin, so maybe you need to make a new ‘post’ on kbin.
Just guessing
The inability to self-soothe and therefore outburst when you have emotions is an executive dysfunction that is definitely part of ADHD. As others have said, the degree to which you feel the emotions may have other components, but the inability to quell or redirect your emotions is definitely a normal ADHD symptom.