I havehad a nissen and hiatal hernia surgery then an abdominal wall reconstruction with surgical mesh then an abdominal wall reconstruction with pig?

Pig - yes: I can't tell from your description the exact mesh or where it was placed. But generally speaking, there are biologic mesh products, some of which are derived from pigs (porcine mesh). Porcine mesh products are processed such that all the cells are washed away, and only the underlying matrix remains. Thus, the risk of adverse reactions from the mesh are very low and the products are very safe.