Ali
I have not heard of any nationwide statistics.
I would think that part of the reason is due to the fact that no one really knows how many people are afflicted with this illness.
I have heard numbers anywhere from 1-5 million.
It is often misdiagnosed and under diagnosed .
You are very fortunate that you got a diagnosis so quickly.
Early intervention is one of the best weapons we have against this illness.
There is also one other weapon -YOUTH!!
I have read that many spontaneous remissions happen in the very young- so I am routing for you

Has your doctor scheduled you for any blocks in your lower body?
Often that can work really well in the first 6 months of the disease process.!!!
You are doing the best thing anyone can do.
You are becoming an informed patient .
While the internet can never take the place of a really good doctor ,it can provide you with additional information and plenty of questions to ask your doctor.
One really good technique is to write all your questions down before your next appointment .
It is so so easy to forget everything you want to ask the doc if it is all in your head.
When you leave his office you will be "OH,why didn't I ask ......"
Just hang in there, one day at a time things can make a lot more sense
Good luck and don't forget to breathe ok
Good n' Plenty(like the candy's - my fav)