Nearly two weeks ago I really hurt my back all at the sides of my spine going into my hips, I went to the docs who just told me to take ibuprofen. I was still in agony a week later I saw another doc who gave me cocodomol the pain is less now but they made me terribly constipated for which I took lactulose but now I think all this medication has given me awful stomach ache. Has anyone else ever had anything like this