Having slurred speech and eye problems is not a crisis.

Crisis is a potentially life threatening situation.

MG is an illness which tends to fluctuate (which means that there are good periods and less good periods).

In some people treatment leads to complete remission and disappearance of all their symptoms. But, in many others it leads to more good periods, but doesn't make the illness totally disappear.

For some people emotional stress is a trigger (which makes the illness worse) and for others it is not. Some people find that eating certain foods make them better or worse. Many times there is no known trigger.

If there is a sudden and on-going change in her condition, it would be advisable to notify her neurologist. Sometimes there is a need to change treatment. Sometimes the best is to just wait and let it get better on its own.