My little Daisy is closing her eyes often right now, but her head is in shed... I'm thinking that's the case because everything else is a1, my enclosure is literally perfect now after so much research. She bulges her eyes also from time to time.
Eye bulging is normal from what I've read and heard. Just one of the wonderful ways these guys can give their owners a heart attack. So I don't think you have much to worry about there.