worst back pain of my life!

Brittney • Mama of 2 girls with baby number 3 on the way (hoping for a boy!!)
So I tweaked my back in the middle of the night Wednesday night. Up in the middle to upper portion of my back. And the pain just keeps getting worse and worse. Unfortunately I'm stuck at work the rest of today and all day tomorrow (I'm on my feet all day). Any suggestions on how to get rid of this pain? If alternated heat and ice, stretched (but as soon as I'm done stretching the pain comes back), and Tylenol only works for 30 minutes. Any suggestions would be appreciated... I am in such terrible pain that I can't eat.