It can happen at any time. Stress is believed to be one of the things that causes sz to first appear other times it could be hormones and a variety of other problems. She can still lead a normal life hopefully, usually people who develop the illness go into remission with medication. Family support is very important. no one tainting saying abusive things just because they don't understand the illness helps she needs all of the support she can get. Some people unknowingly or unthoughtfully comment things like nut ward or monkey dope and this can cause the person to not want to take the meds. I think that sz is like any other illness like diabetes or blood pressure problems people have to take medication to keep well. Sometimes certain vitamins may help taken along with meds. Make sure she has been checked for hypothyroidism, b-defienceny, sleep problems-like not going into all stages of sleep and others. Because sometimes other disorders mimic sz. Good luck and God Bless you.