Hi.
Thanks for your query.
Noted your history of complex of symptoms from past history of congestive
heart failure, heart surgery for valve repair, two stents, diabetes and recently pain in the left upper abdomen, burping, gases,
constipation and now diarrhea and pain in the left lower back. Change of diet is not working as it used to in the past.
With the history of diabetes, it is possibly a case of
gastroparesis causing the pain and burping as the motility if the intestinal tract is reduced.
There can be
gastritis also.
I wound advise you the following:
'X-ray of the abdomen in standing position.
Ultrasonography.
Tests of stool, blood and urine.
Upper GI Endoscopy and further tests as may be required on clinical examination.
This would help to get a proper diagnosis and plan a proper treatment.