I have irrational fears. But I also have past experience with OCD, specifically pure-obsessional OCD so this is all too familiar to me. I have heard that OCD and AS can go hand in hand, but I don't know if that's what you're experiencing, or if it's not OCD but part of your AS dx....can't say for sure.
I have been professionally dx'd with OCD though, so I know that it's probably a seperate issue for me....of course, that was before I knew anything about AS, so maybe that would change...
Bah, sorry. I wasn't much help even though I wanted to be.
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Newly diagnosed at 33 years old....