You overstress for small things in my opinion. The guys at the interview are super cool and if you miss any document you can always send it later via email if you make it through day 4. They told us that 60-70% of the people after day 4 need additional medical exams or additional statements/letters to provide. If you explain them they will understand
. Luckily my medical/papers were ok. Cheers everything will be ok!