My 5 yr old boy Joey has epilepsy and I have experienced MANY seizures. I agree with cami that what you have explained doesnt sound like a seizure.
you asked to explain what they are like.... remember every dog is different as well as every seizure can be different.
When Joey had his first seizure he bascially just had some head tremors along with exsessive drooling. Then a few days later when he had his second one he was standing in the kitchen and just went into a wierd crouching postion then drew one leg up, kinda curling it under his arm pit ( best way to explain) then he started convulsing and again the drooling. The drool is so exsessive that it will soak a towel in no time. every seizure is different, sometime he will have cluster seizure ( multiple seizures back to back) sometimes he doesnt. Sometime he convulses, sometimes his body just stiffens. Almost with every seizure though he "chomps" his mouth really fast and hard while shaking his head. Sometimes he yelps out and barks but not always. They normally only last about 10- 30 seconds in all but to me seems like FOREVER. It usually takes him 30 minutes to fully recover but during this time he is just very restless and does alot of pasing.
I took him to Knoxville Tn to see a neurologist and cardiologist. They ran full blood work and neurological examins to determin the cause. Blood work was all good as well as his heart. In his case they diagnossed him with canine epilepsy.
I do treat with meds. He gets phenobarbitol and zonisamide twice a day and potassium bromide once a day. We first started with the pheno. and they just kept getting worse and more frequent and thats when we went Knoxville. They then prescribed the zonisamide. We did see some improvement but was still having seizures ( about every 3-4 weeks) so when then started the potassium bromide. We again saw some more improvement but still have seizures. They are not nearlly as bad as they were in the beggining and he is having them less frequent too. He is happy and healthy and we hope he keeps heading in this direction.
I hope this helps you and again I agree with cami that I would get to the vet ASAP, the sooner you find out what is going on the better.
Colista ~ Joey's mom
3/15/07 male fawn, docked & floppy