Scared i have multiple sclerosis. how do i find out for sure?

Don't panic yet: Mri of the brain is a good start, sometimes a lumbar puncture is needed as well. These are good starting points. There are now strict diagnostic criteria, google search the 2010 mcdonald criteria.

Could be complex: Indeed, you might have symptoms which are nonspecific and caused by any of a number of diseases. So, get a neurological evaluation, and if suspicion arises, an MRI of Brain and/or spinal cord could pinpoint areas of potential concern. You do not list your symptoms, so, must be generic and nonspecific in my advice.