When was the last time you saw your spine specialist?
Have you had any recent MRI or CT scans done?
Are you sure that your spine has healed?
Are you continuing to do the core strengthening exercises that the physical therapist showed you how to do, every day, at least once or twice a day?
Are you using proper body mechanics when you go to lift something?
Have you been Ok'd to lift things and do you have a weight limit as to what you can pick up?
I would suggest that you see your spine specialist and have an MRI and/or a CT scan done to see if there are any further problems with our spine and to discuss the problems you are having with the spine surgeon
Fran