After getting mri done, not much to contribute for btterment, don't go for operation. Back pain depends on lot of factors such as your profession, type of work, the way you sit, the way you sleep, the way you lift the things etc. Best way is take rest on flat (palang) bed with 2 inches thickness, don't bend & work or lift any thing from ground, rest should be complete except allowing youself to bath room& all the instruction which are advised by qualified doctor or physiotherapist. I am sure you will be much better, take some simple pain killers like dolo 650 mg three times daily on & off when you require them. Don' t forget todo some back extension exercises when you don't feelpain to prevent future episodes of pain.