bowel cancer post-op

My husband had a tumour removed successfully from his bowel on 18th November.   Left hospital 27th November.
77 years old.   Very weak and sleeping a lot.   Stoma o.k.   Weetbix for breakfast but any more eating during the day causes vomiting.     Does not want me to ring for support. (doesn't want to go back into hospital).    
Should I, as his wife and carer, be worried?

[jdwithhcv]

I had a similar experience after having my tumor removed.  This is a worry, perhaps you should ring the doctor.  I would inquire about his meds.  My pain medication was the problem and although it was difficult for a few days, I felt much better after I stopped taking the narcotics  

Best wishes to you and your husband.  It takes some time to heal and some days he probably feels it will never happen, but it will.