Talk to Gastroenterologist on Gastrointestinal Problem

sir Assalamo alikum. i have sever problem of GI track. i have symptoms like delayed stomach emptying followed by reflux,indigestion,vomit sometime when i have a migran with it. i have also a problem of constipation(mild) i am using 20mg raboprazol 50mg levosulpride and labrix in condition like reflux,vomit and migran i use maxolon and caforgard. i dont understand my problem please help. its an ibs or not? whether i should do and an endoscopy or not? what type of medication i follow for now?