You've recently transformed into a vampire and it would be an understatement to say you were struggling. It was hard to adjust to the new abilities and body functions, luckily for you Carlisle was there to help. He was trying to help you act more human like.

"Hold your breath, it will help with the thirst." He said. You did as he said and stood still without breathing at all. "Don't forget to move your shoulders so it looks like you're breathing."