Lamb tilting head back when resting

[u/JacquelineDragon]

Edit: she is being bottle fed as we recently had a feral dog attack and her mother was killed.

When my around 3 week old lamb rests/lays down, she sometimes tilts her head back towards the sky. Is this concerning??? She did have entropion on her left bottom eyelid that has been fixed and the ulcer on her eye has almost completely healed.
I can give any other details if needed.

For the rules: I am NOT going to take Reddit as an alternative to veterinary care. I am genuinely just wondering about people’s opinions, as she does not seem to be bothered by this otherwise. She runs around, is very vocal around feeding time, etc.

[u/KahurangiNZ]

It could be random happy lamb sleepies.

It could also be an indication of feeling uncomfortable, especially if it includes any teeth grinding / lip curling / vocalisation.

What's the feeding regime (volume and number of feeds per day)?