*Read the entire post, please!

I have had my dog since he was born in November of 2004, I was 14. We noticed from the beginning he was kind of a brat – he seemed to dominate everyone in the litter and “attack” them. We also noticed he would shake his head from time to time. Of course we thought nothing of it. As months went on and he grew older his personality began to develop and he became more and more aggressive. Lunging at people, barking incessantly, etc… at about 6 months of age he began to have partial seizures, like this: http://www.youtube.com/watch?v=4sLvC_wxdyk&feature=related
and he began shaking his head more and scratching his left ear. We checked several times for ear mites and we found none. Asked the vet, said it was probably an ear infection or his ears were just dirty so we bought some ear solution and put it in his ear daily. It seemed to help off and on. It worsened almost a year later so we brought him in to the vet to have him looked at — no bacteria or anything. He looked deep into the canal and found nothing, so he prescribed some medicated ear cleaner to see how it worked — zilch! It was okay, then bad, okay, then bad. The same as if we didn’t put anything period. This continued along with the seizures and his short temper for other people. This has gone on and on and on and in 2006, 2008, and 2009 we took him to reputable, good vets in the Dallas area and no one has been able to explain this or find out what is wrong.

He digs deep into his ear and cries, sometimes for an hour. The ear drops, home remedies, etc are too painful for him and so we stopped completely because they don’t work anyway. Seizures are still happening (they don’t occur daily but they do happen as usual every few months or so). We’ve also seen he has a very weak stomach and will throw up most of the time after he eats anything.

Basically, I’m at my wits end. He’s 6½ now and the crying and ear shaking just worsens. I’m tired of spending money at the vet to get the same result. He doesn’t have an ear infection, there is no bacteria of any kind, there are no parasites, and it simply doesn’t make any sense to me. Vets are frustrated, I’m frustrated, and he’s miserable not to mention mean (understandably).

So, anyone here with some knowledge of what this could me? Something a vet may not have come up with yet? I’m pretty close to just calling it quits and taking him on a final trip to the vet which is killing me inside but the shrieking and everything else hurts me that much more.
Out of all the vet visits, blood work was always done. And again — nothing!

It’s like that show Mystery Diagnosis but for dogs.