Thank you for the query.
Your symptoms make you suspicious for colon cancer
. Weight lost, constipations, bloating
and nausea indicates it. It is said that it takes approximately 10 year for colon cancer development. So colonoscopy
should be performed every 10 years (in people over 50). And this is what you should do. Colonoscopy will rule any large intestine pathology including the cancer. If no findings, upper GI endoscopy
and abdominal CT with oral contrast (enteroclysis) should be done.
Hope this will help.