"thought it was water weight"

Puffy Face and Tight Clothes Before Your Period? A Guide to Managing PMS Edema

Have you ever looked in the mirror right before your period and felt surprised? Your face looks puffy as if you had instant noodles late at night, and pants that usually fit well feel uncomfortably tight. You might feel irritable for no clear reason, and your body feels heavy, making it hard to find energy for anything.