Study Purpose: This study wants to see if taking pills that look like medicine (but are not) helps women with Premenstrual Syndrome (PMS) over a long time. PMS can make women feel uncomfortable before their period.

What are Open-label Placebos (OLP)? These are pills that don’t have real medicine inside but are given openly, meaning the person knows it's not real medicine, to see if it still helps them feel better.

Study Details: We will ask women who took these pills in an earlier study about their PMS symptoms now. We want to know if those who were given explanations about the pills feel better than those who weren't.

• The study is a survey done online, so you need internet access.
• You must be willing to participate and have regular periods.
• People pregnant, breastfeeding, or with certain health issues cannot join.