Anna had a bit of a tough morning. Every week or so they need to change the needle in the port. That's the thing they use to administer chemo, draw blood, etc... This article describes it better than I can.
It is supposed to be a simple process where they take one needle out and put in a new one. Apparently, it was a bit of a struggle. I think Anna was a bit nervous about it since this was the first time they were changing it. Plus, when they went to change it, they got it in but it wasn't drawing blood properly so they had to try it a few times.