Ive had lots of symptoms for years. mostly yhey come and go, except chronic pain in my feet, back, shoulder, and legs. I also have difficulty holding small items, trip often, get lost easily, itch without a rash, have a vit. D deficiency. have experienced eye pain and blurriness, slightly slur speech, dont hear as well, and have sores in my nose that hurt and itch. somedays my face itches. i have had a brain scan and a nerve conduction study, So far, they see nothing. i have a difficult time verbalizing. im due for another blood test and a spinal tap. i have to take an antidepressant. what could be wrong? i need an answer.