It is better than you undergo an upper GI endoscopy to look for the grading of GERD and also to look for presence of hiatus hernia. Treating gerd alone in presence of hiatus hernia will not help. Need to address the hernia also if it's large one

Try actapro 300 mg 1_0_0 • Avoid oily fried and spicy food • avoid lemon orange tamarind • Avoid carbonated beverages • Avoid chocolate coffee tea peppermint • Avoid cabbage  cauliflower lentil milk to prevent bloating • donot lie immediately after having food •  sit atleast 1 hour after food • have 75% stomach  full of food and leave 25%empty for digestion • have 5 small meals instead of 3 large meals •  lie on left side while sleeping •  keep your head end  elevated while sleeping • Get endoscopy test with  rut for h pylori