You should avoid milk and dairy products like cheese etc.
They cause bloating
You can consider avoiding wheat related products as well later if there is no improvement with dairy elimination.
Your diet should contain moderate amount of dietary fibers.
Initially you should cook your vegetables well to make the fibers soluble for easy digestion.
Avoid meat, fish, chicken, eggs.
No animal products.
You can have plant proteins, like tofu, tempeh, lentils, rice etc.
Avoid nuts, seeds, beans, cabbage, broccoli, cauliflower.
Also avoid sweets, cake, dessert, ice cream, caffeine as they worsen acid reflux and bloating symptoms.
Add Dill weed powder and caraway seeds to your food every time.
Try aloe vera 1/4 cup + pomegranate juice 1/2 cup every morning-- helps digestion.
Also try Dandelion tea 1-2 cups daily, white bean hummus—they help to prevent bloating.
Also take 2 cloves of garlic daily, wormwood tea 1 cup daily, papaya seed and honey mixture daily to prevent bloating and gas.
These changes will help in improving your symptoms in next few months.
You can take Methylcellulose supplement like Citrucel 2 table spoon full in a glass of water daily to make sure you have smooth bowel movement.
A shot of sesame oil daily prevents constipation.
Also consider taking a probiotic daily.
Phillip's Colon Health is a good probiotic and helps in improving colon health.
Also take activated charcoal supplements daily and drink 1 cup of peppermint tea in the morning and evening daily to prevent acid reflux.
Aloe vera juice, chewing gum daily will prevent acid reflux as well.