Exam depression

Just had my last exam for the year, I suffer hugely with exam nerves, dodgy tummy in the days running up to it and sick twice on the way to it and I did not have breakfast I was so stressed. Now it's over I'm hoping I have failed so I don't have to go back, and I'm scared iv really have failed then I would be a total loser. I just want to crawl into a hole and never come out. Feel so lonely I can't tell anyone else, everyone thinks I'm so clever and doing so well, I'm just a big fake and there all going to find out. just going to go cry now.