Three years ago, Caroline Bengtsson in Trollhättan worked full-time as an assistant nurse and loved to go out dancing with her partner on the weekends. Today she is on sick leave and mostly stays at home after suffering from a severe form of chronic migraine.

"It's incredibly painful like your whole head is going to break into thousands of pieces," she says.

Think the app helps

She has tried almost everything: medicine, Botox and various treatments to relieve the pain, and says that the region's app is one of the tools that helps her see patterns and be able to influence how she feels.

"In the past, I've used paper diaries, but they just lie around. You always have your phone with you," she says.