I was diagnosed with this problem after suffer for long time with digestion issues.
After my results and once at ER o was prescribed a powerful medication to help with my digestion that works really well.
After consulting with my gastro he was against the medication due to the long list of side effects instead he told about one similar with no problems with dangerous side effects but would be available only from New Zealand .
Immediately came to my thoughts I could buy it from my country Brazil , and since then I have my supplies for my 95 years old mother that have the same issues , and I no longer have any problems with my digestion.