Emb-145
No extra medical (well I didn’t anyway).
For the interview examples. I found they were normally happy with an example from anytime in your working life or school/uni etc. If they do ask for one from your current role and you’re really stuck you could say you only have an example for that question from a past (non aviation) role. It worked for me.
I think what’s more important is you have an example for the question as they won’t let you off and will keep coming back to it until you give them one. If you have used an example already on a previous question, don’t be afraid to return to it if it’s relevant to another question.
Good Luck