Hey Totem, this is one time, I kinda differ with Rhonda on pushing for that LP... I'd wait for the neuro appt for that LP... for one thing, you need a neuro to do it right, or someone very qualified (GP's don't do these things) and for another, whoever's doing it has to order the right tests and cultures and get enough tubes or you're gonna go thru that LP again when the neuro gets ahold of ya. My neuro did everything else first. He has a policy on not invading the body til he has too, reduce risks of infection etc... he likes to see all the other tests first... MRI's, evoked Potentials, labs (about
12 tubes of blood to draw, fun time) and keep checking the neuro exams over the months as he schedules visits and listen to the litany of symptoms... and believe me stuff kept happening.
Let the neuro walk thru with ya, but keep a journal now of the symptoms, their severity, when they happen, how long they last, if they go away, if they impair your normal living skills, etc... don't ignore little eye ticks, blurry vision, migraines, muscle spasms, tremors, digestive issues, etc... keep notes and let him know about it. With all the info he can give you the right dx much better and get things settled much better.
My road to my dx took over 12 yrs but I didn't get to the neuro until the last 2 yrs... GP's kept poo-pooing the miscellaneous stuff off (you're older, you're overweight, you're hypothyroid, you're stressed out) til I experienced a paralysis of my right hand, then that got her attention fast. And her suspicions were right. But until the neuro did his job, we didn't have a dx.
So long story short, (sorry for being so windy), go in open minded, don't tell him what you want to hear, make him work for you, make him figure it out and YOU be the patient. I did that to mine on purpose and told him so.( and he knows I know medical pretty good).. it wasn't til he told me what he decided it was that I finally started hunting for info and ways to deal with it.