In the interview Brian's sister Cassie gave GMA she mentioned that she assumed that BL had flown home, "because that's what he did when he is...actually I don't want to say that."
I have thought a lot about what Cassie didn't want to say. I don't think "because that's what he did when he is...cleaning out and closing his storage unit" would make sense. I didn't realize that he actually spoke about medication. Doctors often require patients to come in every three months, especially if they are being prescribed certain medications. Maybe the storage unit story was something he did while he was home and not the actual reason for the trip back to FL. People don't always want to talk about their health, doctors visits or medication. If something flares up, gets worse, or you need a script, flying home to your own doctor might make sense depending on what you were being seen for.
JMO