Button Gauze 3/4 sleeves with twin pockets blouse

Button Gauze 3/4 sleeves with twin pockets blouse, I bought this as a 5X on Wal-Mart and didn’t realize it was a private seller, came in a Shein bag but there’s not a shein label and no size. It’s for sure not a 5X, from pit to pit it’s only 21 inches, I’m guessing it’s really only a 1X or even an XL. Just based on the way it’s designed to fit loosely.