Rosalie slowly opened her eyes and lazily shifted her body, only to be met with a sudden, throbbing ache in her lower back, as though an invisible force clenched her insides with formidable strength. Initially attributing this discomfort to an awkward sleeping position from the previous night, she gradually awakened and sat upright in bed, her realization dawning.
"My period has begun!"
With a brisk movement, she attempted to rise, only to be instantly thwarted by an unexpectedly intense surge of pain that seized her lower back, nearly causing her to lose consciousness. Rosalie retreated onto her bed, curling her body into a protective ball, her arms wrapped around her knees. She then closed her eyes and drew a deep breath, endeavoring to endure the relentless waves of discomfort.
