If you suspect you may have some sort of neurological issues going on then completing a Visual Contrast Sensitivity Test online, might be worthwhile. Website link below.
This test screens for the presence of effects potentially caused by bio-toxins, including Post-Lyme Disease. It can also serve as a baseline test for future reference.
Diagnostics Process: (quoted from their website)
“Many people are chronically ill due to the presence of biotoxins in their system that they are unable to naturally eliminate. Chronic, biotoxin-induced illness is only now beginning to be recognized by the medical community. Many patients have had previous diagnoses that did not recognize the underlying cause of illness in these individuals. These diagnoses included Chronic or Post-Lyme disease, chronic fatigue syndrome, fibromyalgia, sick building syndrome, depression, multiple chemical sensitivity, multiple sclerosis, Bell’s palsy, sensory-neural deafness, irritable bowel syndrome, low vision, chronic soft tissue injury, learning disability and endometriosis. Other diagnoses such as chronic Ciguatera seafood poisoning, Possible Estuary Associated Syndrome, poisonous spider bites, Charcot-Marie-Tooth disease (endogenous toxin) and mycotoxicosis were thought to involve biotoxins, but there was no known effective treatment.
The diagnosis of chronic, biotoxin-induced illness is based on biotoxin exposure potential, multiple system symptoms, the VCS deficit, and no other reasonable explanation for the illness. Since there are usually no tests available to identify the toxins in human tissue, proof of the cause of illness is VCS recovery and symptom resolution following treatment with our protocol, particularly compelling in chronic illness cases.”
There are free preliminary tests before deciding to do the visual test. Prices start at US$15.
Their website is:
http://www.chronicneurotoxins.com/
NB: I have no commercial links with them.