My Mother Is Loosing Weight And Becoming Week From Last

My mother is loosing weight and becoming week from last nov. from 10days she's having bleeding stools and fever
Her symptoms
Irritability, angry about everything and everyone
Always sleeping
Extreme lack of energy
Eating food does not give her nutrition
Slight fever daily
Rapid drop in Hb, mcv, pcv
Pencil thin stools
Blood in stools
Doesn't feel like full defecation
Breathing becomes rapid sometimes and normalizes after sometime
Mild cough started one week ago and is increasing especially increases with fever
Flushing, face turns red often
Sweating
Lives in asbestos house

Colonoscopy indicated blood clots and particulate blood in colon. Cect abd/pel came back normal. She's on haemo up from last Thursday and daily mild fever. Hb, mcv, mchc,pcv have dropped. Doctor just gave haem up and left it at that. I'm worried it maybe serious. What further steps to take?