
Hi Jane, you could also ask the vet to check Jake's heart too as certain problems there can cause seizures. Often though, even after lots of tests, there seems to be no known cause or even trigger - hence the term idiopathic.
My Louis suffered from idiopathic collapses and epileptic seizures. This is what we were tol by our vet, all of which we witnessed ourselves in the same order - A seizure is recognized by collapse, usually onto their side, head usually stretched back, rigidity to the body and limbs, but the thing that defines an 'epileptic' seizure is paddling movements of the paws! Without the paddling movements it is not classed as epilepsy. Louis had both types of seizure,with paddling and without, both types never lasting longer than a few seconds and he never got to the stage where he was having so many that he needed medication - we could go months without one!. He never wet or soiled himself but within minutes of his recovery, he would ask to go out and always did a very soft poo! We always knew when he was going to have a collapse or seizure as he would begin to heave and bring up bile. He would come to find me as soon as he started heaving so I could hold him and lay him down as he collapsed. After a seizure he would be a bit sleepy and subdued for a couple of hours. x