My back hurts so bad its strenuous to walk or even lay down, what could be happening?

I started working out to a new exercise video yesterday, it was Billy Blank’s Ab Bootcamp. My lower back and spine hurt really bad, and I’m not sure if thats just the ‘burn’ from the exercise, or if I really pulled or did something to my muscles. What is most likely to happen here, especially since I havne’t exercised in awhile? Also, what would help ease the pain?
thanks!

you are dying

Best Exercise for Low Back Pain: Front Plank

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