I have underwent gallbladder infection after nissen fundoplication and my bile refluxseems to be by far more pronounced after surgery.is there a link?

On the Contrary: If i understand your question correctly, you are asking if your bile reflux was worsened by your fundoplication (or was your gallbladder infection rx'd by gallbladder removal, which may have worsened your bile reflux?)? The fundoplication is designed to prevent/limit any reflux, be it acid or bile, so it should have improved after surgery. I suggest you return to your surgeon for evaluation.

No : There should be no link. May need test to make sure nissen still in place.