At age of 69 if slip disc happens it explains -
Old age related arthritic and osteoporotic spine causing slip disc with degenerative changes on Bone and spinal cord.
Hence may need -
Lumbar corset belt
Try Tab Neorelax MR 8 mg twice daily 2wks
Tab Pan D empty stomach
Tab Nervemax once daily
Surgery of spine not feasible at this age seeing less improvement chance due to degenerative changes
Lifestyle and posture modification as advised by physiotherapist
Visit an Orthopaedic Surgeon
For gastritis You need to follow a healthy diet. Avoid spicy foods, oily foods, outside junk foods, tea, coffee, sweets, sugars as much as possible. Have 4-5 short meals per day, instead of three big meals. Also drink plenty of water in between meals and little water during meals. You can take pantoprazole 40mg once in the morning half hour before your breakfast for one week. Sometimes stress can also trigger gastritis. So try relaxation methods like yoga or meditation. Also do not starve for too long. If this doesn't give you relief then consult a general physician or surgeon for further evaluation. Consult a orthopedic for further evaluation of slip disc.