My Grand Daughter Who Is Almost 12 Is Having Loss

My grand daughter who is almost 12 is having loss of bladder control and painful pins and needles sensation on different parts of her body. She has had an egg and was told she is having seizures. She can feel a butterfly feeling in her stomach when it starts. Her eyes become dilated. After the buttery feelings she experiences painful pins and needles on different parts of her body. She has been started on anti seizure mess w/o any relief. This has progressed over the last 6 months and has become more severe.