Ive been having back pain since the birth of my 2 year old. It has been getting worst by pain and a dip was showing in my mid back getting bigger and deeper. It is hard for me to get off bed, sitting position. Laying on my back is very uncomfortable. Also at times when im walking it feels like my back locks up on me and it hurts to move. Also my left leg,arm and chest has been hurting. Its a come and go pain. Should i go to the emergencie room or my local doctor?