What could be causes of gastic problems and acidity problems and how to get rid of them...?

See your physician: There are many causes of acid and gastric problems including: food, obesity, pregnancy, smoking, nsaids, alcohol, stress, and a possible bacterial infection. If any of these is the cause to your problem, then you could lose weight, quit smoking, avoid high doses of nsaids, exercise, or receive treatment for a h. Pylori infection. But most importantly see a physician for the most optimal treatment.

Excess acid: Decrease caffeine in diet, minimize alcohol consumption, avoid mint and Aspirin and otc medicines called nsaids (advil, aleve, (naproxen) etc.)you can take over the counter Prilosec to treat symptoms.