mayoclinic.com/health/lyme-di…
That should help.
The symptoms include a bulls-eye rash and flu like symptoms. these may appear days to months after the tick bite. if left untreated, joint pain (arthritis) will follow and possibly neurological symptoms.
If caught in early stage its easily treated with Doxycyline.
Good sources of info about Lyme disease:
lymedisease.org
canlyme.com
lymenet.org
lymeinfo.net
lymediseaseassociation.org
ilads.org
betterhealthguy.com