Your discomfort is legitimate.
Period cramps can wreck concentration, mood, and plans — and the world still expects a normal Tuesday out of you. That's not something you should have to push through in silence, and it's not something we'll pretend a pad can cure.
What warmth can do is help you cope — and Solyvie's job is making sure the warmth you already trust is actually there: at your desk, on the train, in line at the pharmacy. Prepared beats caught off guard.