I have only been diagnosed PA for about 5 months but have been suffering for about a year and a half. I'm 33 and have had psoriasis since I was 16. I'm on methotrexate and prednisone (which I hate!!!) and getting very little relief. I will be starting Enbrel in a couple of weeks so I'm still hopeful. Every time I have a flare up it feels like my joints are weak, loose, and unstable. Is that normal? I thought my joints would get stiff. And also my middle finger has started locking up and I have to bend it back into position with my other hand. Is this part of this crazy disease?