Hello for posting your Q on HCm -
Discomfort in upper part of abdomen is possibly related to live/ stomach/
gall bladder problems
You must get stool examination done for infection screen
Also
blood test &
ultrasonography is required for liver & gall bladder problems
Blood test will check for blood count & also
inflammatory markers ( in case it is related to inflammatory bowel D like Crohn's)
Overall- it is recommended that you must see the Dr & get examination done with tests arranged
Hope this helps