What is a disability according to the Equality Act 2010?

Short video explaining the threshold for disability according to the Equality Act of 2010.

[Mr__Anon-E-Mouse]

This is a pretty good video but what I'd like to see is how someone can actually prove that they're disabled I suffered recent discrimination and I have a really long-term health conditions multiple conditions and I'm autistic and have been diagnosed autistic by a professional psychiatrist and called psychologist with a professional diagnosis that stated in the diagnosis which I've got a copy of that I'm protected under the equality act and entitled to reasonable adjustments this was written into the report by the psychologist, how does one prove that they're disabled when someone like a doctor or another professional is unwilling to make reasonable adjustments do you have to go to court to get this proven what does it take to prove that you're disabled when someone doesn't take it for serious even when they have access to your medical records and they question it what can I do apart from maybe contact you?