Where I work, we have a 2-3 month old purebred Holstein heifer that has been bloating off and on for the last three days. She didn't get an excess of food, she's not scouring, she has no injuries. She is in an individual pen. We've been tubing her and its been helping but keeps coming back, although it hadn't today when I'd left. What other reasons might there be that she's bloating? Could it have something to do with her rumen developing and just something funky going on with that? The vet looked at her and was mystified. Hopefully it has stopped but I'm curious.