Thank you for the query.
First of all you need to calm down as this does not sound like a cancer. However you need to look closer to your symptoms and have some diagnostics. If you do suffer from constipations for years, have had blood or mucus in stool and lost some weight recently, you should have colonoscopy
Your hemorrhoids might need some surgery which can also set you free from stenosis.
Your throat and tongue pains connected with abdominal pain
can be due to acid reflux
disease and throat inflammation
due to acid irritation. If you do have chest burning, upper middle pain after a meal, nausea, you should have upper GI endoscopy.
Moreover, you should have abdominal ultrasound
, full blood work and urine anaylsis performed.
Hope this will help.