Charak Samhita
कटिवङ्क्षणहृत्पार्श्वपृष्ठश्रोणिषु मारुतः । कुरुते वेदनां तीव्रामेतद्वातात्मकं विदुः ॥२१३॥
During menstruation, intense pain occurs in waist, groin, cardiac region, back, flanks and pelvic region this should be known as vataja pradara.
english translation
kaTivaGkSaNahRtpArzvapRSThazroNiSu mArutaH । kurute vedanAM tIvrAmetadvAtAtmakaM viduH ॥213॥
hk transliteration by Sanscript