Mysterious 301 Redirect

When I click on the category “psychic” I am taken to the correct postings but the url shows

http://www.psychicreporter.com/psychic-2/

I don’t want the 2 and am lost as to why.

When I enter http://www.psychicreporter.com/psychic/

I am redirected to a completely different post.

On checking there is a 301 redirect from the category “psychic” to the post “am-i-psychic” but I cannot find how this has happened. I am not aware of any re-directs on the site.

I’d appreciate any suggestions on this. The trash is emptied and there is no other URL with “psychic” in an image, page or post.