Sever back pain Dont know what to do to help

Patient: I’m having severe back pain. Unable to make most movements/stand/walk/turn.Went to the doctor a couple weeks ago for a similar problem but in a different are of my back. I was told it was just back spasms and to stretch it. But I’m afraid to stretch to much or the wrong way and cause more damage.

Symptoms: Unable to move in most positions. severe lower back pain.