About 2 times a year I get disc pain in my lower back that makes enjoying life pretty tough. This last time was the result of throwing my pack on my back with only about 35 lbs. Not sure what happened but it immediately started hurting and the next day I couldnt bend over to tie my boots. With time, it gets better but never seems to go away completely. It seems like whenever I hurt my back it takes less and less to throw it out. Im 31 years old, work out 3-4 times a week and am not at all overweight. I have struggled with back pain my whole life. Anyone on here have similar issues or have suggestions on how to prevent this type of injury?