Tough time at the blood center

I again did the Aphereis blood donation. If I understand it correctly they take 2 pints ... separate the red cells ... and put the remainder (clear) back.

The first poke in the left arm did not go well. A little blood came through the plastic tubing and then stopped. The attendant poked and poked and never got any more to come out. I was freaking out a little bit as the poking makes me feel uncomfortable. Finally they gave up on the left arm and poked the right and got a good stream.

I'm still committed to this, although I was a little uncomfortable today.