My OCD partner is more about the lean than the compulsiveness. I am very clean and bsessive in the kitchen, and obsessive over my food (I have everything overcooked because I know it will more likely kill any germs etc - should never let someone with OCD take a food tech GCSE!) but other than that it's mostly ritualistic. Again, with food (I have an eating disorder too, food's a big thing with me for some reason) - for example I have to line up snacks before I eat them, in order, and I rarely mix food even if it's on the same plate because I have issues with mixing textures. I'll also dissect ice lollies with more than one texture, boscuits, jaffa cakes etc to eat one type of texture or part of it at a time.
I also have tics, have to do things a certain number of times, various other things like that. My partner has a lot less of that. I have a lot less of the clean thing as I said. In fact, I hate soap (especially bar soap, the texture freaks me out badly) and the smell of it and have great difficulty dealing with washing my hands. Even with that dry-on-your-hands soap you get in hospitals, with barely any smell, I don't wash my hands nearly as much as I should. Which is why I never thought I had OCD until I moved in with someone who has it, and it's become very obvious to me since then.
What is co-morbid?
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I'd rather see the World from another angle...