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These symptoms could be due to any disturbance from GIT.It could be increased acidity , gastritis or Peptic ulcer disease
.If there is asssociated diarrhoea or constipation
you should get tested for bowel disorder s like IBS , chronic Giardiasis
I advise you to visit your Physician and get a detailed evaluation.
Treatment with antacids like omeprazole
and eradication of H.pylori infection can relieve the symptoms.
Hope this information is useful to you and others.