Regardless of whether the conclusion is "yes you have x" or "no you don't have x" the diagnosis will be accompanied by a detailed analysis of your psychological condition. Whether or not you are diagnosed, that analysis will cover the issues that led you to believe you may have that condition.
There is a post here about someone who was misdiagnosed and bipolar and that later came up when security clearance was needed for a job.
And it’s very expensive to get the diagnosis, it can be up to $20k in California
Nobody will accommodates you.
Suing for ADA violations will cost $20k just for a retainer. And then it's a gamble if you win or not.
And the US government wants to aggregate us into a list for who knows what reason.