Hi Jckmsss and welcome. This is a very sympathetic and well versed community when it comes to all things MS.
Panic is a normal reaction to hearing about MS, but please pause and understand that the MS of 20 years ago is not the same looking disease these days. There are a number of disease modifying drugs (DMD's) available that help to slow the number of relapses and rate of progression.
In addition to the DMDs there are also a number of drugs available to help with symptoms. The lving with MS is not necessarily bleak so don't jump to the worst case scenario.
the best thing you can do for yourself is learn more about MS - it is a complex disease and can be confusing. They more you learn the better prepared you are to have informed discussions with your neurologist.
We have great health pages here, all written by members of this community. You can access the index here....
http://www.medhelp.org/health_pages/Multiple-Sclerosis/MS-Information-and-Resources-Index/show/22?cid=36
I'm not a medical expert by any means but the locations of your suspected lesions in your brain sound like they are located in the prime areas that are occupied by MS lesions.
There are lots of tests that must be done before MS is declared - it is a diagnosis of exclusion and all sorts of other disease must be eliminated as possibilities before a decision can be offered. That is why you have more tests scheduled for this week.
Good luck with all of this - I certainly hope you don't have MS, but keep in mind that we're here to help you through this next phase. I'll look for you around.
be well, Lulu