Diagnosis from another country

Hi, I'm thinking about moving to Norway for my phd (in ~3.5 years). I live in EU country and got my diagnosis here. I'm taking Medikinet (heard it's available in Norway as well so great, it works well :))

Do I understand correctly that I won't need to rediagnose myself? Of course I suspect that I'll need to translate my diagnosis document to Norwegian and/or English with the help of a translator who does such things? Is it enough to translate my medical files or something else is required as well?

Do I then get the same amount of meds and the same type of them or will it be assessed from 0 by a psychiatrist in Norway? Can you get 3 months supply of meds in Norway as well?

Tusen takk for hjelpen deres! :)

edit: sorry for not using Norwegian, unfortunately I've been learning it for just 3 months and don't have relevant vocabulary to write whole post and correctly understand all of your comments :(