Losing my grip ?

I don't know, yesterday I went into the store  (Jayset) I was formerly a size 8-10 in and came out with all size 12's. My weight has not changed. Although I was happy to score a 200 dollar spring outfit for less than 20 bucks I am concerned that something might be going on. I can't say what it is but I am in trouble. Why can't these demons just go back to hell where they belong. I don't want to go back. Please lord don't send me back. Scared now, Hope