Talk to Gastroenterologist on Stomch Problem

I'm not sure from where exactly pain starts but whole of my tummy feels sore, pains moves from upper abdominal part (under chest middle point till belly button) towards my pelvic area on the both sides, (i feels bloating, gastro, some time nauseous i'm not sure what exactly it is, previously it relates to my menstrual cycle but now its comes often, mostly when i have my dinner then it feels more