According to your sign and symptom you are suffering from gastritis like infection around the git .
As you know that best treatment depend on the correct diagnosis and correct diagnosis depend on the complete history of the patient so please take consultation from a doctor and give complete history of the patient so that correct diagnosis will be make and then best treatment will be start
Next Steps
You should do CBC with ESR and ultrasonography to find out the exact cause .
Health Tips
You should follow good life style like take sufficient amount of water and take less spicy and fatty food and do exercise regularly with yoga and meditation.