Or maybe it's not a hoax and you are misdiagnosed. You might have cow milk protein allergy/intolerance, which is an allergic reaction that happens only in the d

Or maybe it's not a hoax and you are misdiagnosed. You might have cow milk protein allergy/intolerance, which is an allergic reaction that happens only in the digestive tract. Try eating some dried/cured meat that has lactose added as a conservative. No issues? Not lactose intolerant. Try taking some medicine that has lactose added as a binding agent. No issues? Not lactose intolerant. Try eating any cured cheese such as Cheddar or Edam (0.0 g lactose, but check the carbs/sugars label to be sure). Issues? Not lactose intolerant. Try drinking normal milk and then the same thing with exogenous lactase (e.g. Lactaid). Issues without lactase, but no issues with it? Lactose intolerant. Issues with both or no issues with any? Not lactose intolerant. It's fairly easy to self-diagnose as long as you know how the intolerance works (an enzyme is missing in your digestive tract) and the lactose content of things.