Have you checked to see if you are hypothyroid? One test you can do is to take your temperature as soon as you wake up and see if it is very low. Many people are deficient in iodine. Perhaps you should take an iodine, supplement, magnesium,sublingual b12(dissolves under the tongue), a B complex supplement, vitamin c, vitamin a, and molybdenum and see if you feel better. Do you have many chemical sensitivities? Do you have asthma? Vision problems are often due to parasites. So are fatigue and disorientation.