You can keep it to yourself, but you could also call a support team like the team at MS LifeLines. They are there to support the MS community and give good advice.
I go to my physical therapist to keep fighting it and one of them told me if you don't use it, you lose it, but I know we're on television so I won't say what I would often say.
There are things that you can do today that, years ago, there was nothing. The community today needs to know that with MRI and the current medications the view is good.
I have heard all kinds of stories about telling employers about MS and I really don't know what the answer is. I am a private person, but I have found support by talking to fellow MSrs in the community.