What are the questions that I should be asking doctors to get to the best possible answers about where I am and whether or not there is a problem?

Give your doctor the context and then be prepared to participate in some mental tests, which may not go well only because you are anxious. Your doctor should be asking you about whether or not you are depressed, or anxious. Does your thyroid properly function? Where are your vitamin b12 levels? Is there any sign of something effecting the brain? Has their been a stroke? Is there the possibility of a tumor in the brain?