Hi.
Thanks for your query.
Noted your history of controlled diabetes type 2 and experiencing pain in stomach and back. The pain is of tightening type and around middle and sides sometimes causing
shortness of breath. The pain comes and goes and more on sitting or standing too much.
The causes can be related to esophagus or chest and heart and needs the following:
Clinical examination is very important as auscultation alone can help to know the sounds of breath whether asthma or something else, tenderness in the ribs, abdomen and so on.
Additional investigations are:
Upper GI endoscopy for esophagus,
hiatus hernia, gastritis, ulcers and so on.
X-ray of the chest.
Ultrasonography of the abdomen.,
EKG to rule out cardiac problems and so on.
All these things will lead to a proper diagnosis and a plan for treatment.
Till then have PPI like
Omeprazole, antacid,
domperidone, small frequent meals and so on.