Most of the time, it's completely invisible.
The blood count comes back a little off.
I feel a fog rolling in, across my mood, brain, and body.
I want to lie down. The littlest sits in my lap, while I read, slowly. I slouch, more and more horizontal with each book.
But sometimes, the signs are visible. These spots make their way across my arms and legs, up and down, growing, itching, fading, receding. Like a slow-motion pulse.
And then, like the tide, it departs in waves, and I slowly roll up to standing. Upright, I walk, and I am clear again.