Back hurting really bad.

Hey guys so sat night when i went to bed my back was a little sore but i didn't think anything of it. Yesterday it got worse to the point where i couldn't even sit, stand, walk or even lay down because it hurt so bad. I took some advil and muscle relaxers last night which helped but i woke up again this morning and it still hurts pretty bad. I took some Tylenol and I'm waiting to see if it will do anything so far nothing. Do you guys think i pulled a muscle or something? Is there anything else i can do to help the pain?