Don’t mean to offend anyone

It seems to me 90% of people here haven’t been diagnosed by a medical professional with MCAS, some even were confirmed for not having MCAS due to all the test results being negative yet they still label themselves with MCAS

What’s the deal with all this I really don’t understand? If a medical professional confirmed you don’t have MCAS why come here complain rather than finding the actual cause of your suffering?