This video of a guy removing these revolting isopod parasites from the gill flaps of some shrimps made its way onto my feed recently, and I don't know why but I can't stop thinking about it. It's like an intrusive thoughts sort of thing. I've had GAD for pretty much my whole life, and I've had intrusive thoughts before, but they were usually worrying about specific things.

This is just recurring images of the video, which is giving me feelings of revulsion and distress. I don't know why I find it so upsetting, or why I keep thinking about them going into my mouth. It's horrid. What can I do to get this out of my head, and stop it happening again