This is a long shot and I would think your doc did test you for this. Most of the rarer sequela do not appear neurological except for transverse myelitis....there is also that osteomyelitis possibility...Like I said this is a long shot, but animal bites and scratches, with symptoms developing afterwards, are always suspect. You indicated that you had an infection and I wonder if they cultured the wound for any organism?

http://www.emedicine.com/emerg/topic84.htm

Glenn is utterly correct when he says that a lot of SFN never progresses past burning sensations in the feet, and hopefully, the disease process will stop and begin to reverse.