
I had the same bite last week on the outside of my upper arm! That is why I came here. I also live in Northern California. The inflamed area was the same size as yours, perfectly round with a slightly raised center where you could see the very distinct two holes. It itched occasionally and hurt a bit from time to time. I didn't feel ill, though. At first, I was afraid that it might be from a Lyme tick, but after looking at photos, I doubt that it is. There is still a faint red mark around the two wounds, which seem to be full of some dried white material. How is yours doing now? If you find out what it is, please let me know. I will do the same.