OB-GYN in Karachi - Summer Menstrual Cramps Intensity - DW Urdu

I am looking to speak to an expert in Karachi who can talk to me about how menstrual cramps are intense during summers. This is a story I am doing for DW Urdu. Please help me with leads. The expert should preferably be based in Karachi and open to give me an in-person interview.