Thanks for your question on Healthcare Magic. 
I can understand your concern. 
Bloating is mostly due to 
gastritis. And severe 
backache along with bloating is suggestive of worsening of gastritis. 
Only drugs are not sufficient to control symptoms of gastritis. You need to follow these lifestyle modifications for better symptomatic relief. 
1. Avoid stress and tension, be relax and calm. 
2. Avoid hot and spicy food. Avoid junk food. 
3. Avoid large meals, instead take frequent small meals. 
4. Take combination of 
pantoprazole and levosulperide twice daily on empty stomach. 
5. Go for walking after meals. 
6. Keep 2-3 pillows under head in the bed. 
7. Quit 
smoking and alcohol if you have these habits. 
Don't worry, you will be alright with all these. 
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.