My back is really hurting. Should I just stay in bed?

No. Bed rest is rarely prescribed and even then should only be used for very short periods, usually two days at most.  Too much bed rest can actually make your problem worse, as your muscles and joints get weaker and stiffer. The key is to help you get back to doing normal activities as early as possible.  Also, gentle exercises can actually help your pain go away. You need to work with a doctor or physical therapist to come up with a plan to help you gain confidence with exercise, movement, and activity.