hi i had gone through your query and understand your concerns. i would come up with two most possibilities to fit your case.these include
1.first possibility is,gas trouble or APD ACID PEPSIC DYSPEPSIA
.irregular dietary habbits,modern lifestyles (drinking,smoking
,etc),EXCESSIVE USE OF PAIN KILLERS,ANTIBIOTICS,STEROIDS
for even minor complaints, CURRY,HURRY,WORRY are the main causative factors.
2.second possibility is, ALLERGY; drinking alcohol may be the cause in your case.
i advise you taking Homeopathic
medicines gives safe and permanent cure for your complaints without any side effects.
Usually in such cases I will give treatment for my patients in the following manner...NUX VOMICA tid after food until cure.
consult your local homeopathic physician for correct diagnosis of the case and remedy to fit your complaints. or mail me at firstname.lastname@example.org
I hope this is helpful for you, wishing you good health.