Hi Sage's Mom,
I was just thinking...not sure if I am helping here but here goes...
You said she is tethered by your bed. Could it be that she wakes up at 5:30 and pulls trying to walk/run someplace and chokes herself? I know that Coal will sometimes get a little hyper on his leash when he is tethered somewhere to the point where he starts kind of choking himself and coughing. I imagine that could lead to vomiting. Just a thought.
If this may be a possibility, then a crate may be a better option for Sage at night.
I was just thinking...not sure if I am helping here but here goes...
You said she is tethered by your bed. Could it be that she wakes up at 5:30 and pulls trying to walk/run someplace and chokes herself? I know that Coal will sometimes get a little hyper on his leash when he is tethered somewhere to the point where he starts kind of choking himself and coughing. I imagine that could lead to vomiting. Just a thought.
If this may be a possibility, then a crate may be a better option for Sage at night.