I can relate to this. There are two interviews that gave me really bad anxiety, but I think it's because I went in with anxiety as both required moving across

I can relate to this. There are two interviews that gave me really bad anxiety, but I think it's because I went in with anxiety as both required moving across the country in different directions. The first I was accepted, but I think only because the hiring manager worked with me before. I felt short of breath and like I wasn't listening to half the questions. The other was Facebook, which was probably the hardest interview I'd ever done. One particular question involved a lot of keeping things in your head and math (network/node design), and I just froze and got frustrated and in the end gave a crap answer with no thought. Given a half hour without someone staring at me waiting on an answer, I probably could have came up with something decent, I figure. I'm not particularly upset at either case, I'm happily employed. But there was a nagging feeling in the back of my head that I was disappointed that I didn't get to convey 'the true me' to either company, whatever that means.