Upcoming SSA Dr. Appt

Hello just wondering if anyone has been through this particular part of the SSDI process. My case made it to federal, got remanded and now the ALJ wants me to see an SSA doctor. Is it odd or SOP that they scheduled me an appointment to see their doctor on a Sunday?

Second question, the letter states that I need to bring all of my devices and all of my medication in their original bottles or containers. With the type of disabilities that I have, it’s extremely hard to examine me because there’s more things that you cannot do with me than you can. So the question is, what exactly happens during the doctors visit for SSDI? and is it the same process for those who applied for SSI? Thanks in advance for any information that you may provide 😊