Are there signs / warning before a baby goes into seizure?

My 2yrs 6mnths baby recently had a 2nd seizure (the 1st attack was 5mnths ago) caused by fever as according to his paeditrician, seconds before the seizure i could've sworn i saw him having difficulties grabbing his drinking cup (he cant open up his thumb), in a split second he responce in grabbing the cup seemingly well, then i saw him walking in a slow-motion manner (like he was walking n suddenly decided to freeze while walking) and then continue walking again, about 8seconds after that he slump down onto the floor with seizure attack! I googled around, asked the paede n my gp but they cant give me straight answers! I need to know, are these warning signs before a baby had seizure?