Please do not panic. The symtoms are that of eneteritis (inflamation of intestines ) or coliitis (inflamation of colon
). The reason may vary from very spicy diet to infection. In cases of cancer usually the complaints are of 1) long standing, with presence of blood in stool
2) do not usually respond to conventional treatment of diarrhoea
(and you have not taken any treatment yet ) 3)General symptoms of seveare weight loss
, loss of appetite and easy fatigue
At this stage a primary lab investigation of Stool examination microscopic and macroscopic may be advised, followed by Stool culture and sensitivity if needed.
So in my opinion it is not Cancer of colon (from whatever history is available.)Just get some proper treatment from a local