Ok my doctor Gave this to me 1 cause its cheap and 2 cause I pull...

Ok my doctor Gave this to me 1 cause its cheap and 2 cause I pulled some muscles in my back. well today is day 2 of taking the pills and I cant hardly sit. my hips hurt so bad its insane. im not sleeping cause of the pain and its not helping my back at all. Im very disappointed. cheaper isn't always better is it! Ive had a headache ever since i started taking it! Im exhausted. and my back pain is getting worse, Im going to call my doctor tomorrow and hope that she will give me something better.