Lol yeah I find that in Science exams- you sit there thinking "That can't have been on the syllabus!" Still, I've done 2/3rds of my separate science GCSEs (papers in January and coursework), so that's took the pressure off a little.
Orals are nerve-racking, but seeing as I'm doing Spanish for AS-level so I have to do another oral there I'm just comforting myself with the fact that the GCSE one won't be nearly as important as that. When you get stressed about the oral, just think that it's only 25%, if you get a C in it you can still get an A overall, plus on AQA it's marked as 8 marks for roleplay, 12 marks for presentation and discussion and 20 marks for the general conversation. My teacher told us that if you muck up the roleplay you're generally not going to get less than 4/8, and as long as you learn your presentation you should get 12/12, and then even if you really screw up the conversation you should apparently get 10/20, which gives you 26/40, an A. These thoughts are stopping me from completely freaking out about orals...I was in a right state for the mocks so god knows what I'll be like for the real thing! When is your oral? Mine are 29th April and 7th May.....