As already stated there do not appear to be any of your posts deleted.
The only thing I can think of is we have had people complain before thinking their posts were deleted when they were not because in large threads sometimes when you jump around the post history it does not load properly and says [unknown user] or [deleted user] I can't remember exactly. Refreshing usually resolves it if that is the issue, but I could not make it happen today trying to get a screenshot of it.
