I am so sorry to hear that. I too am a mother, and I know how hard it is to watch your child go through anything, let alone anything that scares you. If he had to get lymes disease, at least it is a few years into understanding a bit more about the disease. I am in no way minimizing your feelings. I would also be very frightened. I have read some of the reply's here and it looks like there is some good news here.
You and your family WILL be in my prayers. Love, Becky