Last night I had my grey out for his nightly romp. Within a second, he started twitching and fell off the couch. When my husband picked him up, he was having a seizure (head back, body stiff). A few seconds later, he started to freak out, making his warning calls and bolted thru the house. He had to have 1 eye removed due to his fall at birth so when he went running, he ran head first into everything! This is something he has never done nor has he ever had a seizure. The last 3 days he has started walking with a head tilt (good eye down). Today, he is perfectly fine, as if nothing happened. What could cause this? He steal a sugar wafer from the counter but only had a bite of it which he has done before. Should I call the vet and have him looked at?