Just from experience, I know how frightening it is when your child goes limp from a febrile seizure... it happened to my son also at 17 mos, then again at 5 yrs. (he is now 7) Although you may think 101 isn't too high, and for some children it may not be.... other children, like your daughter and my son, have a lower normal body temp. So, for our children 101 is very high, and their bodies cannot handle that temp. First of all.. always make sure that you have motrin on hand, it is the quickest medicine to bring down a fever. Also, a luke-warm bath... not hot, and not cold. Any time my son would start to act like he wasn't feeling well... I would routinely take his temp... if it started raising...99.. I would give the motrin, for fear of having another seizure. Both times it happened, we went to the emergency room... when he was 18 mos and it happened, because he was so young, and unable to communicate to us what hurt, or how he felt, our pediatrician ran all sorts of tests... all turned out negative... It is just our children's body's way of dealing with a fever. It is so scary, but it is also perfectly normal. As for epilepsy... I do not believe that is a hereditary disease. You can check with your pediatrician, but it doesn't have anything to do with the high-fever and seizures. The way I was told by a pediatric neurological specialist, is that it is perfectly normal for a high fever to cause a seizure... called a febrile seizure. However, if your child starts having seizures with no fever, just out of the blue... then there is a much greater concern, where they would want to run all sorts of tests. Once you talk to other mothers, you will see that it is quite common, these febrile seizures... it doesn't make it any easier to deal with in the moment it is happening. But you know you just have to be very alert when she doesn't feel well, and be ready to give the motrin. My son is 7, and has not had a seizure since he was 5. They say, by age 5, they start to outgrow the febrile seizures. My son was sick about two months ago, his fever was 101.9 (not high for most, but extremely high for him) I was so worried that he was going to have another seizure... but he didn't.... his body was able to handle it. Sorry to be so lengthy... good luck.