I guess he has brain damage or something from last year when he was poisoned and almost died; He doesn't let my mom and I sleep, he's a nervous wreck most of the time, and he keeps doing this jumping flinching thing that the vet can't even explain why. I love my dog with all my heart but sometimes I think it would be better for him, and my mom and I, if he was put to sleep. Vet won't do it, though, since he's technically not sick, just old and senile. I just don't know what to do, it seems there is no solution.