I'd bet on renal problems, assuming the hospital thing is real and not another of her lies.
You could be onto something, because she did reveal the reason for her hospitalization, and it's something with multiple possible causes, including renal issues. I'll summarize what she said, but I hope that people with medical knowledge are able to sit through her voice long enough to listen to what she says. She may be saying or implying things that I'm not knowledgeable enough to catch.
Here are the videos discussing the hospital admission:
Summary: she'd been vomiting for unspecified reasons. She ended up with metabolic acidosis "really bad," and her potassium "dangerously low." She was "severely dehydrated from nonstop throwing up." The throwing up and been going on for about two days, and she wasn't able to eat for about 48 hours while she was so sick. After admission, they "checked out" her heart and "did all these tests" (not specified or elaborated on). After being released, she anticipated being able to eat normally again and to get back to normal quickly-- she says she always bounces back quickly after "medical things." She's been home for a few days, though, and she's still struggling to get food down. Not currently nauseous but has no appetite. Has mostly been eating smoothies at home and ate one slice of pizza.
/end
It just seems like a very vague update, and she typically overshares. She didn't actually say why she was throwing up in the first place, which certainly makes me wonder if it was alcohol-related. I'm hoping our resident medical kiwis can come up with some good theories.
She also posted a picture of food. The nuggies spell out Ari's name, but notice all that ranch-- I'm betting these were for Alex, and Ari is safely with the Smiths. And, really, it would be better for anyone in this situation if the toddler could stay with her grandparents while her mom is freshly out of the hospital, so I don't know why Alex is pretending.
NOAH WATCH: more whiney mental health re-shares about how hard it is to be a BPD train wreck whose parents are totes mean. No comment from him on Alex's situation.