Hi, there.
Actually the history of having a batch of symptoms that come and stay for a while, then go away is what the neurologists look for as Shell said. Each attack can be completely or just a little different.
85% of people with MS start out with the Relapsing Remitting kind which is caracterized by this pattern of attacks (relapses) with come and go. When that pattern is present it is easier to diagnose.
Yes, you definitely need to write down when each of the times were that you had symptoms, what the symptoms were, what limitations you had and how long it all lasted. We recommend the use of a timeline to make it clearer for our neurologists. You can find a discussion of the Timeline here on our Health Pages.
http://www.medhelp.org/health_pages/Multiple%20Sclerosis/The-Importance-of-the-Timeline/show/765?cid=36
This should help your doctor see what you have been going through.
If you don't know about this kind of coming and going of symptoms it does sound crazy, but the neuros are trained to keep an eye out for this pattern.
Quix