Kellie's invention led to starting a business to help other sufferers.

'It really weighs on me'.

It's time to break the myth that extreme period pain is normal.

I've finally learned how to accept myself, flaws and law.

Why she's staying 'realistic' about her chances.

Here's what we've learned from these brave women.

The actress has spent most of her life dealing with the chronic illness.

''We have tried to...''

How she's made it through 20 years with the condition.

''This is a marathon not a sprint.''