Possibly being admitted?

Looking for some advice for anyone in Australia that has experienced being hospitalised or similar. I have been seeing my GP every fortnight for monitoring as I was only just diagnosed with Ana/mia a few weeks ago. My dr has just rang me asking to bring a support person to my next appointment in a few days and wouldn’t tell me why?? I’m worried… I tell her I have support at home but I feel like she’s going to stage an intervention.

Has anyone been in a similar situation???