Joined game to having no items after logging off

I'm not sure if this was a bug or not but I logged off after getting tired and lost all of my items including my hardcore run (as in only one life) And I don't even know if i died because when I logged on I was in ragni. I was in the middle of pigman ravines and logged off. Also when I got on I had this helmet called Mask of the Dark Curse. I thinking someone got a hold of my account or something.

Update: Somehow the account that i had is back???
Update 2: Turns out i just clicked the wrong account and deleted another bow character that had zero items on them. wow that was a lot of emotions writing this. hope this serves as some kinda educational post to not be dumb lol