15 Yr Old Daughters Cramps

I’ve read that cramps aren’t supposed to be debilitating bad. My daughter has had 2 recent cycles where her cramps were so bad that she was in tears, last time being so bad she couldn’t stand up straight.

She also has severe acne (started accutane just yesterday), shes at a healthy weight and very athletic.

How do I advocate for her at the doctor? Is two inanely bad cycles enough for there to be a problem or is it “normal” period pains?

It’s unfortunate as she complains about her cramps so often, but then says they’re not bad and it’s just normal cramps. But I know these two were severe and she isn’t just being the girl who cried wolf for them.