HI MY NAME IS SABRINA AND SINCE GIVING BIRTH IN SEPTEMBER I STARTING EXPERIENCING UPPER BACK PAIN SOMETIME IT FEELS AS MY SPINE IS HURTING AND IT SHOOTS TO ONE SHOULDER BLADES TODAY AND TOMORROW IT MAY BE THE OTHER. SOME TIME IT LAST ONLY A DAY OR SOMETIMES A FEW DAYS. THAN IT WILL GO AWAY FOR A FEW DAYS COULD IT BE FROM THE EPIDURAL I RECIEVED. 3 YEARS AGO I PASSED OUT IN MY KICTHEN CAME THROUGH AND I WAS FLAT ON MY BACK COULD THAT BE THE ISSUE. sOME TIME IT FEELS LIKE A PINCHED NERVE OR A KNOT. ALSO I WAS A PREVIOUS SMOKER UNTIL I BECAME PREGNANT