When you go to them they check the boxes for how far you walked, whether you could go on public transport etc etc. If you’re anything like me where I can do a bit if I have had a few rest days before and I’m panicking with going somewhere strange so need a family member or friend and I’m wound tight as a spring, it’s worth requesting a home visit as they don’t take into consideration anything they think you can do.
I only know this as I had to go once a few years before I was diagnosed, when I was beating myself up as being pathetic and my dad took me. I was on crutches and in so much pain, my neck was badly damaged and I should have been at least a paraplegic. They said there was nothing wrong with me and I could go back to work (as a nurse) full time. I appealed so they wrote to the hospital who had just scanned me as they thought it might be ms, and my scans and their examination proved I was so disabled I qualified for high rate both in care and mobility.
Doing yourself an injury to attend the appointment isn’t always to your benefit, I struggle to go out now and it’s definitely easier if they can see me at home, but everyone’s different. You have the right to have a home visit if it’s better for you.
Good luck and let us know how you get on.