I have mild disc bulge in lumbar L4-5 since 3 years. When it dignosed i took a rest for most 4months. It was horrible pain in both legs rather than a back. Took some sessions of physiotherapy and mild excercise, went all well and after a year i was back to normal ... Again the same pain has started after years and i am off to work.. dr said its normal , i am scared,  will it cost me again bed rest for long ?