I ate some spinal cord of lamb and am extremely paranoid.?

I was at a middle eastern eatery with several friends and was served a chunk of lamb which happened to contain its spine and several ribs... I noticed that the spinal cord was present, and in a attempt to be open minded/adventurous gastronomically I ate a small portion of it about, about 2-3cms. After thinking about it some more, and then doing some research on the internet, I am extremely paranoid. I understand that there has not yet been proof of a link between Scrapie and humans, I do understand that at least in Europe, the consumption of certain meals which include the spinal cord have been discouraged... I have been thinking about vomiting, however, from what I understand about prion disease acquisition vomiting might not be a good idea if it is able to be acquired through breaks in skin... I'm quite sure I'm being overly paranoid about this isolated incident, but human life is rather fragile. I could use some knowledgeable reassurance... of whether I should be paranoid or not... Oh man.