PMDD: 'I remember sitting on the floor and screaming'
Bella Humphries describes "sitting on the floor" of the shower and screaming as she battled an undiagnosed condition.
The 29-year-old from Conwy said it felt like her "world was over".
She has Premenstrual Dysphoric Disorder - which causes a range of physical and mental symptoms in the two weeks leading up to a period and is estimated to affect between 5% and 8% of women.
Campaigners are calling for more awareness of the condition.