Of course I'm biased because I'm a big fan of Andy Martin
Also though, his suggestions make great sense. Wherever the "stuff" comes from, it needs some kind of processing in order to truly resolve. I myself don't watch the news...but now that I think of it, it's not only because it's mostly negative and adds nothing positive to my day, but also because it can trigger old unresolved stuff for me. I've found though that life will do that, regardless of whether I watch the news, so there's no chance I'll miss out on healing these issues when I choose to.
I would try Andys technique, and probably EFT also. Even just sitting still and asking the "visions" what they want to tell you can work. I'll get little flashes, like a word. Then I just sit with that word in mind, and it usually has a story from my past to show me, feelings left unresolved...that I can then process if I choose to.
I believe that anything that you perceive "out there" that brings up feelings in you, is old stuff needing completion.
Hope some of this helps you come to closure and peace of mind with whatever you're dealing with.
Pam