Everyone experiences this disease and it symptoms differently. There is no way to know which symptoms you will or will not have.

I have had this disease a very long time and I have never had Optic Neuritis. This is a symptom I could possibly still get but I may go through my entire life never having ON --- there is simply no way to know.

My first exacerbation (relapse, attack, flare-up) at the age of 24 consisted of these symptoms:

- Numb from the waist down
- L'Hermittes
- Bi-lateral leg weakness
- Tremors
- extreme pain (whole body)
- severe mobility problem/barely able to walk
- pins & needles in legs
- vibrations/buzzing from waist down

By your definition I would have had early MS at that time and you can see your experience with MS is different than what mine was.

Unfortunately, there really is no answer to your question --- MS is a "wait & see" type of disease.