Dear Patient
the symtoms you are describing are unspecific and can have several reasons, i will try to give you a helpful overview. You haven't said how long this is going on, so i will make a few suggestions what it could be depending on the time scale:
1. If this is going on just for a few days it could simply be a stomach bug/ stomach infection=
gastroenteritis caused by bacteria or virus and would mostly go away by itself within a week approximately
2. If this is going on for a longer period, it could be a stomach acid problem like
gastritis or ulcer. This can be ruled out by a gastroscopy. Also a stomach bacteria infection with so called
helicobacter should be ruled out by a stool sample. This can be treated with acid blocker pills like
pantoprazole.
3. it could be other infections in the abdomen, so i recommend an
ultrasound of
gall bladder, liver, pancreas and kidneys if the problem persists to rule that out, also a general
blood test for infection parameters like so called crp, bsg and white blood cells is advisable.
Your gp in town will narrow down the reasons by a physical examination and see which cause is most likely and do any of the diagnostics suggested above to find out whats exactly wrong.
Hope this is helping you , if you have any clarificatons you can get back to me, if this was helpful please kindly rate my answer. Best regards