Living with back pain

I am a 25 year old female. Ive been living with back pain since I was in junior high, not sure at what age it started. I dont know what brought about the pain either such as a wreck or a fall. All I know is Ive been dealing with this for years. Im stiff and sore feeling in the morning. The pain quickly turns into a dull deep aching pain that is very aggravating, in my lower and MOSTLY mid back. The middle back bothers me the most. The more activities I do during the day the more my back hurts, I tend to hurt more at night then in the morning. Laying down completely flat does ease the pain, sometimes when I lay on my stomach I get my husband to rub my back which feels very tender in the mid back to his touch. Over the years there were times when I would bend over to pick something up and something would "catch" in my back and the pain would be so intense it would bring me to my knees as if I lost control of my legs. Any and all advice would be so much appreciated, doctors opinions would be GREAT! Thanks everyone so much