Thank you so much everyone.
GOOD NEWS
We have a cause and a treatment plan. He has a bacterial infection in his blood likely from an ulcer on his foot. The antibiotics are working and he should be home in about a week.
He was able to sit up for an hour and a half and is now able to feed himself, but still with some difficulty. He is really into Star Wars and
LEGO so I took him a few minifigures and he was able to grasp them and move them around which he wasn’t able to do even last night.
I’m so, so relieved. I have only slept for about three hours since Wednesday morning and I was running on fumes. I know I’ll sleep well tonight.