i am the proud pet of a retired sar golden named shemp. shemp was at ground zero in 01.he was 29 mos old. upon returning home he started to have severe grand mal seizures.he has seen 15 vets .all agree on one thing. he has epilepsy.noe can say what causes this and none can say if his time in ny was a contributing factor. he siezes about every 3-4 wks.when he seizes he has about 10 a day for 2-3 days then is back to "normal" he eats 300 mg of pheno a day.he has regular checkups every 60 days to insure that the pheno levels in his blood are at a therapeutic level.be prepared to have this routine.he is a retired sgt for the chicago pd.his pals (2 borders,a sheltie/coyote mix and a st bernard) will usually let me know a few hrs before when they are coming.your vet will tell you that they dont know what causes epilepsy. its aood idea to log every seizure in a log book.this will also help your vet gauge how and when it is time to increase meds.i log date,time,activity @time of seizure,and length of seizure.