Freaking Out Here - Logged into my a character and items are missing

Please help. I just logged into into my warrior who had prot gear on. I use the item switch in the character tab like I normally do to switch to fury and I noticed it said items were missing. So I check my bag and I'm missing 410 4pc and H Backbreaker Spaders as well as my HC Gurth and HC Slicer. I go to my bank and they are not there. I check my mail and nothing is there. So, I check all my other toons with bis donated gear and everything is fine, only my warrior is missing gear. Please help. I just want to add that nobody plays on this account but me and nobody knows my password or login.

Additional Info: The last time I switched gear from Fury to Prot was HC Blackrock Caverns right as I entered to do a RDF HC.