I think they going to connect it automatically. This happened with my wife who got her medicals a year ago for a work permit. and now we applied for RNIP in Sudbury and they didn't ask her for medicals. Only for me and my children.
The first Q. option 1 (if you are apply not your work)
the 2 Q. is Canada if you are in Canada.
3rd Q. Just give some detail of your work. (what you do in your work) eg. if you paint door just say " I paint door in ....."