Gastric catch / severe pain

Hai ladies....
Iam a mother of a 5 month old baby girl....this is my first delivery....soon after my delivery my body has changed a lot...2 months after my delivery i started to have unusual,severe gastric catch pain in my upper stomach area and in right,left side of my back whenever i eat certain food like potato,egg,nuts,beans,ghee,etc...

the pain is too severe that it even lasts for 5 hrs....i dont know exactly whats the problem..before my delivery everything was normal but now Iam experiencing a worst situation of pain...

Ladies ,,,i need your help...have anybody experienced the same pain like me? If so how are u treating it? I need your valuable comments pls...