I have to agree with Annie, and you have to remember that this disease is so variable, that each person may well have a different experience.

I too have read often that Well I would have to challenge that.

I am still without a dx, though it is 95% certain that I have some form of Myasthenia.
Whilst Mestinon, at the right level, gives me back an almost normal level of energy, having to plan the rest of your life in 4 hour chunks, is hardly Normal.

Also it has taken me 11 months before I could get meds. In those 11 months I have been able to do zero exercise. As a result I am now 10 kilos heavier than I was and out of condition. Working within the confines of MG, it is likely to take me a couple of years to get back to where I was... again hardly normal.

It will be different for everyone, if only your eyes or swallowing have been affected, then it may be easier, but as Annie said