i, who?

I am me.
I am many people.
I am many names. 
I am many issues.
I am many lives. 
I am many ages.
I am one body, but I am not one me.
I exist in many times, in many forms.
I am different friends to different people.
I am maleable.
I, therapist.
I, microscopist.
I, scientist.
I, helpline volunteer.
I, friends.
I, child to my father.
I, sibling to my sisters.
I, a dark hole in my mother.