To undiagnosed adults or those diagnosed in adulthood: How did you realize you might be autistic?

I knew growing up that something was wrong with me could not reach the same level as the average child.I was tested after my 2nd marriage late 50's and found to have autism +dd which roughly means lower IQ Which explained a lot of my troubles growing up my dad always said was slow.Then soon after became incontinent my wife who has a high IQ helps with everything.

I knew growing up that something was wrong with me could not reach the same level as the average child.I was tested after my 2nd marriage late 50's and found to have autism +dd which roughly means lower IQ Which explained a lot of my troubles growing up my dad always said was slow.Then soon after became incontinent my wife who has a high IQ helps with everything.