Effect of Bei App for Fibromyalgia

"Participants will attend 12 weekly group sessions, each lasting one hour, focused on psychoeducation. In addition to that, participants will receive access to the BEI mobile app, designed to reinforce education and exercise strategies outside clinical sessions. Participants will be instructed to use the app daily, guided by a to-do list including:~* 1 educational module (interactive format) + 3 questions self-exam~* 1 physical activity (video-guided, adapted by fatigue and pain level)~* 1 gamified cognitive task (for memory, attention, speed processing and/or executive function)~* Daily mood and symptom check-in"

Participants will attend 12 weekly group sessions, each lasting one hour, focused on psychoeducation.