What does my endoscopic biopsy suggest?

Hi doctor,

I am working as a software professional. Recently, I had discomfort in digestion, severe bloating, gas formation and a frequent sensation of motions. I went to a gastroenterologist and he made an endoscopy and an endoscopic biopsy. The biopsy report is as below. Nature of specimen: Received single grayish white mucosal tissue bit measuring 0.3 cm. The entire tissue was processed. Macroscopic examination: Section shows single small gastric mucosal bit with superficial erosion of surface epithelium in the focal area. Foveolae and glands are unremarkable. Lamina propria shows moderately dense, diffuse infiltrate of lymphocytes, a few plasma cells and a rare polymorph. Lymphoid follicle formation is seen in one focus. Scant muscularis mucosae included shows no significant pathology. No definite H.pylori, intestinal metaplasia, glandular atrophy or dysplasia or malignancy noted in the section studied. Microscopic examination : Moderately dense, diffuse chronic inflammation in stomach (endoscopic) biopsy. I had antral gastritis a year back and took medication for some time. I am always eating outside food, but nothing spicy. I am currently taking Razo-D in the morning and Razo 20 at night.

Thank you doctor,

What causes this condition? Is it something cancerous? Is it a chronic condition? Is stress solely responsible for this? Can gluten allergy cause this? What kind of foods and timings has to be followed? How frequently do I have to consult a doctor for this condition? Kindly answer these questions.