Well the list could get to be pretty long. Can u tell us what u'r symptoms are? My symptoms are numbness in different places over my body, balance probs, the great drunken walk, stings and crawly feelings over my body, MEMORY probs, and i could go on and on...but can't remember them all now. I'm sure u'll get a more extensive list from others here too. The tests i've had and most have are mri's, multiple blood tests to rule out multiple illnesses, evoked potentials for hearing and vision, nerve conduction test, various in office tests they do during u'r exam. I'm sure i'm missing a lot, but others should be along soon to fill in where i've missed the mark. Sorry! I truely hope u don't have ms, but i'm glad to see u'r doing all u can to be sure. The thing is that diagnosing ms is a matter of ruling out every other possibility and then, if u'r tests reveal certain things...like lesions in the appropriate places on u'r brain/spine and deficits in areas of u'r reflexes and so on...then they can dx ms. U may want to visit the ms society's site and check out the symptoms page. Welcome to the board and i hope u can rule out ms very quickly.