Question

Randy has been experiencing several disturbing symptoms over the last year, including muscle weakness, slow reaction time, visual perception issues, seizures, hearing loss, weight gain, general sense of pain and delusions.

1.Explain why his doctors might be concerned with the following in making their diagnosis:

Neurotransmitters
Hormones
Myelin sheath
Occipital lobe
Temporal lobe

If anyone can help me with even one out of these it'd be so helpful!