H.G.
I sorry ma!
I would think anything is possible. It may not be normal, but a big fever could happen anytime. Im not too familiar with epilispy, but my sister had a grand Mal seizure when we were 5 and with the whole twin thing, I knew she didn't feel good. She told my mom her cheek hurt all day then had a seizure that night and stopped breathing. Like your baby all the tests were normal everytime. She was put on phenabarbatol but we are now almost 33 and she has never had another one. If your not comfortable don't stop! Get 2 ns, 3 rd even 4 th opinions. Good luck love.