I think I'm an indigo
 

How can I be sure if I'm an indigo?
I'm 41, and I'm thinking that may be too old to be an indigo adult.
I don't think I'm crystal or rainbow.

I can't see auras, and I don't remember what one gifted with auric sight told me before. I just remember her saying that once my aura was muddy.

Maybe I heard there was a blue to it.

But usually when I look at others and see color, I see a blue aura. Usually only white, and usually only when I get my energy flowing.

You might be an indigo, there were early indigoes sent out as early as the sixties according to the literature available.