My Chest Will Hurt When I Get Up Off The

My chest will hurt when I get up off the sofa or raise up in bed. It doesn't hurt when I am up walking or breathing. It will hurt momentarily with a deep breath but just the first breath. My breathing is good and I don't have a problem with cardio workouts. It started 2 mornings ago when I woke up. Could it be from sleeping a certain position with my neck or the type of bed or number of pillows?