Yes, your back pain could be related to problems with adjacent discs to the area of your lumbar fusion. The fused area is not able to assist the body with movement and the additional stress is absorbed by the adjacent discs. This does put those discs at increased risk.
Hopefully you are getting the treatment you need to resolve your problems ---
thanks for replying I hope i get the treatment i need also, I have had doctors give up on me. do you know they usually to for slipped disks im guessing its surgery