Our Zoe, who had epilepsy, used to 'paddle' when she was dreaming! She'd 'bark', too, but it came out as a tiny yelp. She had a ferociously loud bark when she was awake, so you have no idea how happy we were that 'dream paralysis', which is normal, kept her dream barks so quiet!
When she was laying down and had an epilepsy attack, her legs would go stiff, no paddling.