Someone asked the OP if she had an official diagnosis and I did not see where she answered that.
It was me who mentioned the official diagnosis and to take the diagnostic report along to the next appointment. The OP said she planned to do that, which is definitely something I'd do
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I did seek an official diagnosis. Why did I do that? Was it to get accommodations or income supports? No. It was because humans are capable of greatly misleading/deceiving themselves, and I wanted an objective opinion.
That was among my reasons for seeking a diagnosis too. It simply wasn't enough for me to 'self diagnose' because I would not have been able to manage my feelings well if/when being on the receiving end of comments that the OP has been subjected to. I wanted the back up of hard evidence/proof.
It just so happens that I've needed that proof for work 'reasonable adjustments' which would not have been accommodated in the absence of a formal diagnosis.