Lol yes that's probably what it was
He was half asleep when I got him out as well - just woken up to the cage clanging at feeding time - a bit bleary eyed at first. He seemed partly to want to be active and partly to find somewhere dark to go. I have another video a bit later where he's trying to dig a tunnel under OH sitting on the sofa lol.
One of his eyes looks a bit different I notice. I thought at first one eye wasn't as open as much, maybe because he'd been asleep. But now thinking the other eye is the one that looks different. Like a sort of dark ring round it.
He seems very healthy and energetic though!