Likes other says it's a spectrum.

Think about how a leg issue can be different;

• some people might walk perfectly normal but it starts to hurt after 5 min and they can't lift too much.
• some might have a limp.
• some might need a cane.
• some might need a wheelchair but can still walk a few feet.
• some might wheelchair and not be able to walk.
• some might not a leg
• some might not have either legs

No matter what it is, it's still a disability, just are some are more of a struggle than others.

Autism has a spectrum too, the problem is somewhere in the brain so we can't see it like we can see a cane or missing leg. Things like asthma or color blindness are disabilities too, but we can't see those either.