Dog barking strangely after seizures?

[Islandgirl]

Hello! One week ago today, my previously healthy 7 year old German Shepherd had two seizures (approx 5-7 min each, involving his whole body) within a 12 hr period. We took him to the vet immediately, where they did bloodwork, urinalysis and a full physical checkup. The vet said that all his results looked fine- no sign of illness, stroke, epilepsy, etc.- and no follow up, other than to return if he continued to have seizures, was recommended.

Since that time, he's been eating and drinking well, but seems somewhat subdued. Additionally, although he used to always bark when someone came to the door or another dog came by the yard, he has stopped barking almost entirely, and when he does bark, it comes out as a high pitched "yip," not his usual deep bark.

He doesn't seem to have any trouble swallowing, breathing or eating, and is not panting or drooling abnormally, so I'm really not sure what could be going on...does anyone have experience with this? Thanks for any advice!