I feel there is a difference between having a disability (a condition) and being disabled (a state of being).
If a condition affects your ability to do something, then it is a disability.
As someone with ADHD and ASD, my ability to do certain things is substantially impacted by my condition. I am fortunate enough that I am able to adapt my environment to my condition, reducing the impact, and do not feel the need to seek concessions elsewhere. As such, I do not identify myself as a disabled person, but I do have a disability.
Others (even with the same condition) are not quite so lucky. Their disability has substantial impact on their day to day lives, and they need external assistance - they are "disabled".
If a condition affects your ability to do something, then it is a disability.
As someone with ADHD and ASD, my ability to do certain things is substantially impacted by my condition. I am fortunate enough that I am able to adapt my environment to my condition, reducing the impact, and do not feel the need to seek concessions elsewhere. As such, I do not identify myself as a disabled person, but I do have a disability.
Others (even with the same condition) are not quite so lucky. Their disability has substantial impact on their day to day lives, and they need external assistance - they are "disabled".