Hi, I Had Right Hemicolectomy 3 Months Before T1N0MX, With

Hi, I had right hemicolectomy 3 months before T1N0MX, with Lynch syndrome. surgery time CT scan clean, Blood test normal. current Liver MRI normal. Now I have to much upper and right upper abdomen pain after eating, belching, bloating and 2 kg weight loss within 3 weeks. I am 45 yrs old male. Also one yr 2 months before I did gastroscope clean no H. Pylori. Thanks for attention.