Dear friend, welcome and thanks for entrusting your query here at HCM!
I am Dr. Prasad Akole (Critical Care Expert- http://bit.ly/Dr-Prasad-Akole) and am glad to address to
your query here.
Swelling of feet after appendicectomy is not normal post op finding.
In his case, it is due to fluid retention, most likely renal failure
He likely has kidneys which are dysfunctional from diabetes
and are now failing causing water retention.
The gas is likely ‘gastritis’.
What is his creatinine
, urea like?
Does he have any fever?
Is urine quantity reduced?
I think he needs medical attention and meticulous fluid management, blood work and a nephrology opinion if RFTs are deranged.
I hope you are fully satisfied with the guidance I gave.
Hope I have answered all your questions. I would be glad to answer any further queries. Please ask for
any clarifications before closing and rating this answer.
Thank you and Good luck!