1 doctor weighed in:

I never eat breakfast but when i eat lunch straight after i get diarrhoea. Also pains in my back at the top in the middle and on the right.

1 doctor weighed in
Dr. Geoffrey Simon
Pediatrics

In brief: Lactose intolerance?

Recommend keeping a food diary for a week or two and see if the symptoms are related to any particular foods.
If one eats dairy for a meal and experiences general bloating, discomfort and diarrhea soon after, that suggests lactose intolerance. Food allergies may also trigger abdominal pain and diarrhea, though vomiting is more common.

In brief: Lactose intolerance?

Recommend keeping a food diary for a week or two and see if the symptoms are related to any particular foods.
If one eats dairy for a meal and experiences general bloating, discomfort and diarrhea soon after, that suggests lactose intolerance. Food allergies may also trigger abdominal pain and diarrhea, though vomiting is more common.
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