There is a chance you might be lactose intolerant.
A diet without lactose can be tried for 2-3 weeks while introducing JUST MILK Lactose Free to maintain your intake of many essential dairy nutients.
If symptoms appear again after reintroducing lactose-containing products, lactose intolerance is likely to be the cause of your discomfort.
You should seek advice from your GP. It would be helpful if you keep a food and symptoms diary prior to your appointment to help with the diagnosis.
Your GP may suggest a further test to confirm the diagnosis, most likely a breath test or possibly a blood test.