Will i be obligated by a neurologist for a spinal tap for migraines? will be my first time going and don't want spinal tap done. scared.

Of course not: The neurologist won't consider doing a spinal tap unless there is a reason to suspect that your headaches are something other than migraines. And that would probably come only after imaging studies. And if you have to have one (not likely), it won't happen during the initial visit.

Unlikely: Lumbar punctures are generally not done as part of an initial evaluation for migraine headaches.

Migraine headaches: No, there is no reason to perform a lumbar puncture on your first visit or any visit unless you might have meningitis with a stiff neck and fever, nausea, and vomiting, spontaneous brain hemorrhage, multiple myeloma, or MS. I think you are safe probably for more than one visit to the neurologist.