Hi Alixjo and welcome to the MS forum here at MedHelp. I'm so sorry you have to wait to see the neurologist - I hate waiting.
When you construct your timeline you want to keep it as simple as possible. Doctors are not going to read every little bit of detail so don't get bogged down with little things. I would briefly mention the unexplained symptoms from your 20's.
We have great health pages here - you might want to read some while you are waiting.
A good explanation of lesions is at
http://www.medhelp.org/health_pages/Multiple-Sclerosis/Lesions-Lesions-Lesions/show/762?cid=36
the index for the health pages is located at
http://www.medhelp.org/health_pages/Multiple-Sclerosis/MS-Information-and-Resources-Index/show/22?cid=36
you can browse the pages by topics, and hopefully find plenty of information to help you prepare for your visit, whenever that occurs.
In the meantime, welcome and I hope we will see you around more.
be well,
Lulu