John,
I'm terribly sorry to hear of your diagnosis. I hope it is a mild case and you are spared the worst effects of your condition (if indeed you do turn out have it at all). I have personally observed two people with significantly different cases of MS during the first few years of their learning to live with it. Their stories are illuminating in their contrast.

The first week of my (1980) sophomore year of High School, I noticed a new figure in the halls. He was tall, extremely (way too) skinny and hunched over a cane, looking at the floor. He was wearing a backpack (which I assumed was full of books, since his hands were both on the cane in front of him) and moving so slow that he was practically standing still. He would move one foot about an inch forward, then the other. I noted his presence, which was not so unusual in our school (we had two guys and one gal in wheelchairs and about a dozen deaf students), and that was it. Or so I thought.
About a month later, I finally got a look at his face and recognized him as a good friend of mine from Junior High named Charles! I was shocked, and asked him what had happened. You guessed it... MS! Charles was always awful in P.E. & sports. He was a bookworm, quite the brainy type and scrawny as all get out, but he was a great guy and a good friend. I truly couldn't express how sorry I felt for him. He hated it, and was vocal about it. But he was also resolved. He couldn't change it, he said, but he would do whatever he could! He was not going to quit fighting the condition!
Over the next three years, he taught me a powerful lesson, as he managed his health treatments, diet, exercise, stress levels and I have not idea what else. By the time of our High School graduation, he was walking slowly without the cane, looking and acting pretty much like any other normal person.
As the web and email came into public awareness in 1995-6, we found each other in cyberspace and caught up on each others' lives. He is now a multi-lingual world traveler, and had spent more time since graduating college out of the U.S. than in it, constantly on the go. He still has MS, but it's pretty much just a technicality in his life, with no real effect.

In college, my girlfriend's (1986-7) dorm roommate was diagnosed with MS. Her symptoms manifested as, essentially, bad grades. She couldn't recognize when she was having problems and when she wasn't, and was truly baffled by the way her grades would plummet across all her classes at certain times. As her problem progressed, she began manifesting difficulty with fine motor skills. Once diagnosed, she was told that, as long as she 1) got 8 hrs. of sleep nightly, 2) drank very few (or, preferably, no) alcoholic beverages, 3) did not smoke, 4) exercised daily, 5) ate healthily, 6) took her medication and 7) avoided stress, her symptoms would vanish and she could and would live a perfectly normal life. This was, indeed, borne out by real life experience over the next few years.
Her resentment at "being sick" was so great, she rebelled. Partying caused her grades to plummet, until her lack of coordination grew into falling down and walking into things. Then, she straightened out and began her personal care regime... until her bitterness at not being "normal" returned, and she refused to take her medication. After her symptoms grew to slurred speech, she again began to take care of herself... until she felt like she was missing out on too much of the "fun" of college life and began partying "only some" again. When her symptoms grew to blackouts and unconsciousness, her bitterness increased. As time went on, she increasingly became a resentful, self-pitying young woman who barely took care of herself and blamed "her disease" for her problems. Every (short-lived) time she would actually practice her regime, she straightened out almost instantly. Her normal functioning would reliably remain until she began drinking, staying up too late, eating junk food, etc. Then, she would almost instantly relapse. If her relapses lasted long enough, her symptoms would worsen... until she shaped up again.
I don't know how her story ultimately turned out, if indeed it yet has.

I won't belabor the moral of these two tales , as we all can see it instantly. I'll just say, please take care of yourself. The next half dozen years are not the end of your story! Even if the disease kicks your butt in the short term, the future can still belong to you!