My old mate Jack had a bit of a moment this arvo.
When I got home from work he came inside from sleeping on his bed, his breathing became very shallow and rapid, he put on his wobbly boots like an old drunk and collapsed infront of me. I thought we were going to lose him there and then.
Sharyn came home as I was soothing him and I carried him to a pillow near the gas heater. We decided that we'd see what came of it in the next hour or so before we called the vet. We put some water near him and after about an hour of laying dead still he decided he needed to drink. After the drink he ate some food and now, a few hours later, he's moving around as if nothing happened.
I appears that he may have been dehydrated and had a little seizure. All a little bit dramatic for the afternoon.