We explored the experiences of women with fibromyalgia during the COVID-19 pandemic from a qualitative approach by interviewing eighteen women. We identified seven main themes after performing a thematic analysis: pain description, pain triggers, impact, coping strategies, treatment for pain, pain onset and general situation. In general, pain worsened during the pandemic, and activity restrictions and changes in social interactions were particularly related with that. Pain negatively impacted different life domains: mental health, physical health, cognitive status, social activities and daily activities. Coping strategies varied slightly after the pandemic outbreak, and treatment was interrupted for some women. Results reflect that the pandemic was challenging for women living with fibromyalgia, and highlight the need to develop specific interventions for them in the context of potential future health emergencies.