There are many other diseases that mimic MS, so they should be trying to rule those out first, i.e. Lupus, Lyme, B12 deficiency, etc.

With a history of symptoms like yours, that could prove indicative of MS, they might now test for:

1. Lesions in the brain or spine; MRI with contrast of the brain, (and spinal cord, if your symptoms are indicative of spinal problems).
2. O bands in the spinal fluid; Spinal tap.

Positive findings from these tests are what you'll probably need to prove in order to get a MS dx at this point in time.

Personally, I'd want a MRI (as above), but if nothing shows in that, no matter what else they determine (from ANY other testing), you aren't likely to get the dx anyway. If your symptoms have been ongoing for many years, it's not likely to be meningitis or an infection in your spinal cord (you'd be dead already) . . . so I wouldn't see much point in doing a spinal tap. The ODD person gets a dx from spinal tap findings alone (i.e. no lesions), but not often at all.

Besides ruling out everything else, and doing the MS-specific testing, they should be able to objectively test for weakness and shaking, and treat you for those (and any other) symptoms anyway.

MS can be hard to dx, for some people. Sometimes it takes a long time.

Cherie