Hi, i am 32 years old. 82kg weight. recently i have experienced stomach digestion disorder ie gas also my head is full, i feel sitting quite place everytime?

Indigestion: These are too nonspecific symptoms to say anything about. You should be evaluated by a doctor to check for any signs of any problems.

Head fullness : Could mean allergies, sinus infection, lack of sleep , stress.Take some allergy meds ( eg Claritin (loratadine) , Allegra , zyrtec ...), get 8 hours of sleep, eat healthy , don't skip meals and relax! try to avoid food that cause gas . Continue your omeperazole as prescribed . Will need to see your physician if indeed you have sinusitis for antibiotic prescription.

See a doctor: You should see a doctor and get a full exam. Your problem could be treated with medication. If not resolve with medication, you possible need to have endoscope to look at your stomache to find out the cause.