Yes, I ruminate about things I write or things that have been said to me in other forums and in news articles that I comment on. My irritability/agitation has run over into posts in other forums and it results in negative feedback and I get severely depressed over it. The internet is virtual. It's nothing like face-to-face contact so it's like a different World. For instance, I belong to some photography forums and exchange information on editing image files and some of the experienced members can really put you in your place and it gets under my skin. I just took some concert photos and asked for some feedback in a Canon forum and was basically told that I don't know what I'm doing and it's bugging me right now. (fyi: I write a lot because I've written a lot of technical reports at work and was taught to write so that nothing is ambiguous and the meaning is clear - and some people take offense that I write so much. I try to let it roll off my back, sometimes they are right though.) I'm trying to cut down on the internet now but it's difficult.