Are you running any content-scripts, (Chrome extensions, Greasemonkey scripts, etc?) Probably not, but worth asking to narrow things out.
Also, how many blogs are you following, and what was the status of some of them? (like 4 with new posts, etc)
Mmmm I love naan. Oh, wait…
It’s because you clicked on an Interaction/Activity, correct?
I don’t know if it’s because of that, but I did click on an interaction iirc.