She went through a period, a couple of years ago, ofher back going and water infections and had a couple of A&E visits. Never admitted. Im not sure "ambulances" were called. Maybe an ambulance (singular) once, if that. Pretty sure the "my lower body collapsed, couldn't feel my legs, couldn't walk unassisted" are exaggerations. I don't remember anything as dramatic as that happening.
She did talk once about being in hospital with a "life threatening" infection so maybe that's what she means but says herself that was before she was vlogging so, deffo not 2 years ago.