Any of you guys suffer from a bad back? Ever since I can remember I have suffered from a lower back pain, it comes and goes and for no apparent reason. Really fks me off, was for heading to the gym to do my legs night tonight and my back just got sore all of a sudden, lying on the couch now, sore bending down ect. I know it`ll be ok tomorrow and I`ll be back training but it f**ks me off. Any stretches ect to prevent it??