Borrowed Blood

This blood, it is not mine
It is borrowed
I suppose it's mine by now
After it's cycled it's way through the four chambers of my heart
and made it's way through my capillaries
But it is not really mine

I was once A positive, healthy and full of life
But then I started degrading
Until one day I found bruises on my arms that were explainable,
The headaches and bad luck that kept me bleeding
Diagnosed with two terminal diseases
But that would never bring me down

When I found out about it's betrayal,
I was aided with countless transfusions
Still A positive, but not entirely mine
It came to the point where I need a transplant
Where my blood needed to start over again
O positive, that's my blood type now
Same as my sister, my donor
Grateful now that I have life

But this blood, this blood is not mine
it will never be my blood
My blood was bad, so this blood is new
borrowed, but not temporary
Forever mine until I pass
So, I guess technically this blood is mine now

But to me it will always be borrowed