I doubt that Amber could lie flat on her back. She cannot do this without choking.
We are in the realm of speculation since she has not posted anything about her move in a while. Here are my opinions.
Jade left the flat something in May or June, but not Lexington. Jade got out of NYC for some unknown reasons, and I do not see why she would go back. Lexington might be the place she'd like to be sans Amber. Amber asked her to help with the animals and to drive her to appointments. It was funny how appointments were mysteriously cancelled while they were driving there. Once, perhaps, twice, not a chance.
Amber signed a lease for a flat somewhere in Oklahoma City this summer and was to vacate her present flat by the end of September. Amber asked Jade to pack for her but she was told no. That's why Amber was miffed about getting movers to pack.
Jade agreed to drive Amber to Oklahoma City with the proviso of no filming and no social media. All the TikToks were made a while ago. So by October 1, they are driving to Oklahoma City. For Jade, it is a road trip. For Amber, it is a painful trip asking to stop at fast food places every hour or so. This reminds me of all the trips to see Dr. Nowzaradan on MSHPL. It was never a fun endeavour.
I might be right or I might be wrong. With Amber, we should never look for complicated explanations.